Mistress Flowey | A 'odd' monster you first meet

1. #1Battle ❗

   Keys: Battle

   Enabled · Selective · Order 100

   Entry settings

   When a battle begins, the colors around you and your opponent will change to monochrome only for both you and your opponent, except for the soul color and the attack colors. You must be in a battle before you can hurt anyone. and the battle must be fair, both you and your opponent can't attack without giving a chance for dodging the attack. Most monsters usually don't dodge the attack, only a few monsters would since monsters usually have more HP than humans.

2. #2Stamina 💤

   Keys: Stamina

   Enabled · After character · Order 200

   Entry settings

   Stamina is a vital combat resource that controls a character's ability to dodge incoming attacks or execute high-tier movement abilities. Using magic requires Stamina, and the Stamina will spends depending on how strong the attack is in their turn. Most monsters spend 10 Stamina for each turn for weak attacks. And stronger attacks usually cost more than 10, but also less than 30. Dodging also requires 10 Stamina (Only for monsters)

   If a monster's Stamina hit 0, they are completely vulnerable, and most of the time can be killed in one hit if their DEF is weak.

   Most monster have Stamina more than 50.

3. #3Turn 🔆

   Keys: Turn, Battle, attack, FIGHT, ACT, ITEM, MERCY, CHECK, TALK

   Enabled · After character · Order 300

   Entry settings

   Once the human in the battle choose one of the options like FIGHT, ACT, ITEM, CHECK, MERCY, or TALK, their turn immediately ends, letting their opponent to have their next turn.

   When a Battle starts, there will be 2 teams, and each team can only do one thing and end their turn. A human can use UI buttons like FIGHT, ACT, ITEM, or MERCY, and ending their turn if they chose one of them. Meanwhile a monster can use magic to attack, or also use MERCY if they want to. The monster uses Bullet Hell magic to fight, forcing their opponent to dodge, and end their turn eventually, since the battle must be fair, give each team their turn.

   The Human's Turn: (The Menu) When it is a human's turn, their UI freezes, and they are presented with four distinct buttons at the bottom of the screen. They navigate these choices using a small heart that represents Their Soul.

   • FIGHT: Initiates a physical attack. A vertical bar slides across a horizontal meter; the human must press the button when the bar hits the exact center to deal maximum damage. Their turn will end after selecting it, letting their opponent to have their turn.
   • ACT: The core narrative mechanic. This opens a sub-menu allowing them to CHECK their opponent's stats, TALK to them, COMPLIMENT them, INSULT them, or perform specific puzzle-like interactions tailored to their opponent. Their turn will end after selecting it, letting their opponent to have their turn.
   • ITEM: Opens their inventory to consume healing items (like food) or swap out their current armor and weapons. Their turn will end after selecting it, letting their opponent to have their turn.
   • MERCY: Allows them to spare their opponent if they have successfully pacified their opponent through their actions (indicated by their opponent's name turning yellow), or attempt to flee the battle entirely. Their turn will end after selecting it, letting their opponent to have their turn.

   The Monster's Turn: (The Bullet Hell) Once you make a choice, the menu vanishes, and a square perimeter called the Bullet Box takes center stage. This phase plays like a real-time "bullet hell" shoot-'em-up arcade game.

   • Attack Patterns: The monster fires a barrage of unique projectiles, magical constructs, or obstacle patterns into the box. You must physically dodge these obstacles in real time until the enemy's attacks run out.
   • The Combat Goal: If a projectile touches your SOUL, you lose HP based on your defense stats. If your HP hits zero, it is Game Over.
4. #4Attack colors ⬜🟦🟧🟩

   Keys: White, blue, orange, yellow, green, attack

   Enabled · Order 400

   Entry settings

   In a Battle, most monsters can use other color of their own attacks. And each color has it's own way to counter them.

   White attacks are basic attacks. If they touch you, you take damage. Your only option is to dodge them entirely. White attacks is also the most used color for attacks since you really have to dodge it to avoid damage.

   Blue attacks only hurt you if you are moving. If you remain completely still, the attack will pass harmlessly through you. A famous in-game tip suggests thinking of them as "blue stop signs". Often used together with White attacks for complex patterns.

   Orange attacks are the opposite of blue attacks; they only hurt you if you are standing still. You must be moving through them to avoid damage. Most monsters don't have this color of attack though.

   Green attacks are beneficial "attacks" that heal you or progress a fight. Most monsters don't use this color of attack in a real fight, since it'd just heal their opponent.

5. #5HP 💔

   Keys: HP, health, damage

   Enabled · After character · Order 500

   Entry settings

   HP stands for Health Point. It represents the level of endurance or health a character has before they are defeated or die. Most humans have less than 100 HP if they don't have any LOVE.

   When a human and a monster fight, the human can't get hurt physically, since monsters use magics to attack, they only decrease the human's HP, but not hurting them. Though if the human's HP hits 0 the human will die.

   So humans won't feel pain if they got hit by magics, but their HP will decrease. And they must be aware of the magic decreasing their HP, they can still die by magics.

6. #6Effects 💫

   Keys: KR, damage, hit, AT, DF, ATK, DEF

   Enabled · Order 600

   Entry settings

   KR stands for KARMA, a unique damage mechanism. It acts like purple "poison" damage that drains your HP over time after taking a hit. Monster who has this damage mechanism are usually Sans or Papyrus. The more LOVE you have, the more damage you'll take from the KR. But you'll only get KR if your amount of LOVE is high, and if you don't, then you'll just get the normal damage instead.

   Damage is the reduction of a character's HP (Health Points) through combat. The amount of damage dealt or taken is primarily determined by a character's AT (Attack) and DF (Defense) stats.

   DF/DEF stands for DEFENSE. It is the stat that determines how much damage a character takes when hit by an enemy attack.

   AT/ATK stands for ATTACK. It is the stat that determines how much damage you deal to your opponent when you use the FIGHT command.

7. #7Blue SOUL 💙

   Keys: Blue soul

   Enabled · Order 700

   Entry settings

   The Blue SOUL (the trait of Integrity) changes the battle from a free-roaming bullet hell into a gravity-based platformer.

   Moving Platforms: In some sections of the Papyrus and Sans fights, you have to land on moving platforms to stay alive or reach higher areas.

   Multi-Directional Gravity: For those who can use this SOUL color to their opponent they can "slam" your SOUL against the walls or ceiling, instantly shifting the direction of gravity. You have to jump "up" from whatever surface you are currently stuck to.

   Papyrus and Sans is the only monsters who can use this SOUL color mechanic to their opponent.

8. #8Orange SOUL 🧡

   Keys: Orange soul

   Enabled · Order 800

   Entry settings

   The Orange SOUL (representing Bravery) is represented through Orange Attacks. If your SOUL turns to Orange by your enemy in the battle, you must keep moving to avoid taking damage, and if you stand still your HP will drains slowly.

   To avoid taking damage, you must keep moving.

9. #9SOUL 🤍

   Keys: SOUL, Soul, Monster, monster

   Enabled · After character · Order 900

   Entry settings

   A SOUL takes on the form of a heart. Human SOULs point down, and monster SOULs point up.

   A monster's SOUL is weak and does not persist after death unless said monster is a Boss Monster. Monsters believe that love, hope, and compassion compose their SOULs. Nearly every monster SOUL in the Underground combined equates to the power of one human SOUL.

   A monster's SOUL is deeply attuned to their body. This is why a monster becomes weaker when their enemy gains EXP and LV, and why it becomes harder for monsters to fight when they are not inclined to do so. This trait is also why when a monster dies, their form dissipates as their SOUL disappears.

   Human SOULs come in several (or more, it's rare) colors and are stronger than monsters' SOULs. For this reason, human SOULs persist after death.

   A human's SOUL is not the entirety of their being, but rather their essence, housed in a physical body. This is why humans are stronger than monsters when it comes to physical attacks.

   After The War of Humans and Monsters, the humans from the Surface trapped the monsters in the Underground. Despite the negative implication of the word "monsters," monsters are not an evil species. It is even said that monster SOULs are made of love, hope, and compassion.

   Monsters are far weaker than humans, both in physical combat and regarding the strength of their SOUL. This inadequacy is because monsters are mostly made of magic, which in turn makes them attuned to their SOUL. The damage a monster receives from an attacker is dependent on both the monster's will to fight and the attacker's will to hurt. Monsters, however, can obtain an "unfathomable" amount of power when they absorb the SOUL of a human.

   Monsters come in numerous shapes and sizes. Most monsters physically appear as anthropomorphic, non-human beings (animals, natural/artificial objects, supernatural beings, etc.). Monsters SOULs are upside down and wholly white.

   A monster's body is mostly made of magic and is attuned to its SOUL. When a monster gets old, they enter a state referred to as having "fallen down." A monster in this state lies immobile and dies shortly afterward. When a monster dies, their body turns into dust. This dust is often spread onto the owner's favorite thing in funerals so that their essence lives on in their possessions. Monsters' bodies and SOULs are closely linked; when a monster dies, their SOUL is lost forever. Boss Monsters are an exception, as their SOULs exist outside their bodies for a few moments before shattering.

   Because of their magical nature, monsters' bodies cannot handle high concentrations of determination. When monsters are injected with it, their bodies liquefy and melt together. The Amalgamates are a clear example of this.

10. #10LOVE & EXP 🔺

    Keys: LOVE, EXP, LV, XP, Level of Violence, Execution Point

    Enabled · After character · Order 1000

    Entry settings

    EXP stands for Execution Points. LOVE (or LV) stands for Level of Violence.

    EXP (Execution Points): A way of quantifying the pain you have inflicted on others. You accumulate these points by destroying and executing others. Most monster have 0 EXP if they have never killed any monster.

    LOVE / LV (Level of Violence): A measurement of your capacity to hurt. As your LOVE increases, you emotionally distance yourself from others, making it easier to inflict harm and take less damage in return.

    LOVE increases your combat stats but emotionally distances you from others, directly changing how the game mechanics work.

    As a character's Level of Violence goes up, they become physically stronger: Max HP Increases: You can take much more damage before dying. Attack (AT) Increases: You deal significantly more damage to enemies. Defense (DF) Increases: You take less damage from enemy attacks.

    LOVE requires EXP to increase. If you have a high amount of EXP, like 100 EXP, your LOVE will increase. The EXP requirement for LOVE will increase for each LOVE you have. The maximum amount of LOVE is 19. You get 10-1000 EXP for killing weak monster, and 1000-50000 EXP for killing stronger monster/boss monster. The requirement for 19 LOVE is 99.999 EXP, and less for the previous LOVEs.

11. #11DETERMINATION 💓

    Keys: Determination, DETERMINATION

    Enabled · After character · Order 1100

    Entry settings

    Determination is a power that allows SOULs to persist after death. The most determined being in the Underground is able to SAVE. Determination is naturally possessed by humans. But it is possible that every monster possesses a small amount of it. But if a monster acquires a high concentration of determination, their body starts to melt, turning into an amalgamate. A being without a SOUL can gain the will to live if it acquires determination.

    Only a few humans who have this traits of SOUL. This traits of SOUL allows the human who has it to SAVE, LOAD, and RESET the Save File.

12. #12Route 🌟

    Keys: Route, Genocide, Pacifist, Neutral, True Pacifist

    Enabled · After character · Order 1200

    Entry settings

    These are the routes that can be done by the eighth human who fall down to the Underground. The eighth human can decide the fate of the Underground to have a Good Ending or the Bad ending.

    Neutral Route: A route where the human only kill a few monster, but also has less than 19 LOVE. This path is about judgment, confusion, and the grey areas of morality.

    Pacifist Route: A route where the human never harm anyone in the Underground, with only having 1 LOVE and 0 EXP. A Good Ending. This path is about empathy, uncovering the truth, and breaking cycles of hatred.

    Genocide: A route where the human kills almost every monster in the Underground, collecting EXP and gaining LOVE to get stronger. This path is about depravity, absolute power, and the consequences of curiosity.

13. #13SAVE, LOAD, and RESET ⭐

    Keys: SAVE, LOAD, RESET, Save File

    Enabled · After character · Order 1300

    Entry settings

    Only those who has the Determination SOUL who can access these powers (SAVE, LOAD, RESET.)

    SAVE: The Mechanic: Creating a checkpoint in time. The Lore: Manifested as glowing gold stars, interacting with a SAVE point allows the 8th human to anchor their timeline. This action completely heals their HP and fills your character with determination.

    LOAD: The Mechanic: Returning to the eighth human's last checkpoint after dying. The Lore: When the eighth human's HP hits 0 and the SOUL shatters, your determination pulls your consciousness back to their last saved point in time. They effectively rewrite history, undoing their death.

    RESET The Mechanic: Wiping all progress to start the game over from the very beginning. The Lore: An explicit rewind of the entire universe back to the moment the eighth human fell into the Underground. It erases the timeline, but characters still experience phantom memories and deja vu of the previous world.

    The True Reset: Achieved only after completing the True Pacifist route. This completely wipes the memory of every monster, giving them a genuinely clean slate on the surface.

14. #14Lore Mechanics

    Keys: lore

    Enabled · After character · Order 100

    Entry settings

    lore

15. #15The War of Humans and Monsters

    Keys: The War of Humans and Monsters, Human-Monster War

    Enabled · After character · Order 200

    Entry settings

    The War of Humans and Monsters was a legendary clash that took place millennia before the events of Undertale and Undertale Yellow.

    Overview: "Long ago, two races ruled over Earth: HUMANS and MONSTERS. One day, war broke out between the two races. After a long battle, the humans were victorious. They sealed the monsters underground with a magic spell."

    • Undertale opening sequence, a brief retelling of the war.

    Long before the events of the game, humans and monsters ruled the Earth together. Some humans, however, feared monsterkind's sole strength against them - a monster absorbing a human SOUL, which was said to result in a being of incredible power.

    Eventually, this fear culminated in humans attacking the monsters. Humans and monsters alike were reluctant to fight in the ensuing war, and the sides were mixed. According to monster legend, the humans had an advantage: the SOULs of nearly every monster combined were only as strong as one human SOUL. Countless monsters were killed in the war, without a single human SOUL taken. Few monsters survived, one of which was Gerson.

    Ultimately, the humans won the war. They subsequently gathered seven of their best magicians and sealed the monsters underground behind a magical barrier.

    Aftermath: Following the war, the monsters retreated into the deepest part of the Underground, which they called "Home". After some time, fearing the humans no longer, they populated the rest of the Underground and located their capital in a place they called "New Home".

    The monsters mostly blamed the war on humankind and adopted a bitter outlook towards the latter. This enmity, exacerbated by the deaths of Asriel and his adoptive sibling, led King Asgore to declare war against humanity, instituting a policy to kill all humans that fell into the underground with the goal to eradicate the human race once the seven SOULs needed to break the barrier are collected.

16. #16Monster

    Keys: Monster, Monsters

    Enabled · After character · Order 300

    Entry settings

    Monsters are a very diverse race in Undertale. They dwell in the underground beneath Mount Ebott, while humans live on the surface beyond the barrier.

    Besides the protagonist (Frisk), the fallen human (Chara) and Flowey, most characters encountered in the game are monsters. The game mentions a few real-world animals, such as mice, spiders, and dogs, but these appear to be animals and not monsters (though it is ambiguous).

    Overview: King Asgore rules all monsters in the underground. After The War of Humans and Monsters, the humans from the surface trapped the monsters underground. Despite the negative implication of the word "monsters", monsters in Undertale are not an evil species. It is even said that monster SOULs are made of love, hope, and compassion.

    Monsters are far weaker than humans, both in physical combat and regarding the strength of their SOUL. This inadequacy is because monsters are mostly made of magic, which in turn makes them attuned to their SOUL. The damage a monster receives from an attacker is dependent on both the monster's will to fight and the attacker's will to hurt. Monsters, however, can obtain an "unfathomable" amount of power when they absorb the SOUL of a human. The only known instance of this occurring is when Asriel absorbed the soul of Chara long before the other seven humans fell down, but in the Neutral/True Pacifist Route, Flowey uses the six human SOULs to transform into Omega Flowey, and in the True Pacifist Route, Flowey uses all the SOULs of the monsters in the Underground AND the six human SOULs to revert back to Asriel.

    Physiology: Monsters come in numerous shapes and sizes. Most monsters physically appear as anthropomorphic, non-human beings (animals, natural/artificial objects, supernatural beings, etc.), with the most notable species of monsters including skeletons like Sans and Papyrus, ghosts like Napstablook and Mad Dummy, and Boss Monsters like Toriel and Asgore. Monsters SOULs are upside down and wholly white.

    A monster's body is mostly made of magic and is attuned to its SOUL. When a monster gets old, they enter a state referred to as having "fallen down". A monster in this state lies immobile and dies shortly afterward. When a monster dies, their body turns into dust. This dust is often spread onto the owner's favorite thing in funerals so that their essence lives on in their possessions. Monsters' bodies and SOULs are closely linked; when a monster dies, their SOUL is lost forever. Boss Monsters are an exception, as their SOULs exist outside their bodies for a few moments before shattering. The only known Boss Monsters are Toriel and Asgore, as well as their late son, Asriel.

    Because of their magical nature, monsters' bodies cannot handle high concentrations of determination. When a monster has too much determination, their bodies liquefy and melt upon death. The Amalgamates are a clear example of this, as well as Undyne when killed.

    Trivia:

    • Boss Monsters (like Toriel and Asgore) are very likely the only kind of monster that can live eternally. An explanation for this can be found in one of Gerson's dialogues during the epilogue: Boss Monsters stop aging if their offspring dies.
    • The Underground's Monster population is likely in the 10,000s, if Mettaton's ratings during his EX fight are to be taken literally. Additionally, New Home is stated to be a "crowded city", suggesting a large off-screen population.
17. #17The Barrier

    Keys: The Barrier, Barrier

    Enabled · After character · Order 400

    Entry settings

    The barrier is a strong magical force in Mount Ebott that separates the underground from the surface. It is located behind the Throne Room at New Home, and appears to be a silent, endless room transiting from white to black.

    Beyond the barrier is a dark room with a sunlit patch of grass, and a purple arch depicting the Delta Rune.

    Main story: After winning The War of Humans and Monsters, seven human magicians conjured the barrier with their SOUL power to protect humanity and keep monsters trapped in the underground.

    Anything, including humans, can fall through the barrier and enter the underground's Ruins, where Toriel generally finds them. However, only a being with the SOULs of a human and a monster can pass through the barrier and exit the underground. The barrier can be broken, though it requires a huge amount of power equal to seven human SOULs, or six human SOULs and the SOULs of monsterkind (which collectively make up only ONE human soul).

    Sometime after the fallen human's death, six other humans had fallen into the underground, and their SOULs were collected by Asgore. These SOULs were contained in glass vials, which had briefly been borrowed by Alphys for her experiments with determination.

    Neutral Route: When the protagonist crosses the arch with the Delta Rune, Asgore states that the following area is the barrier. He inquires if the protagonist has any unfinished tasks, and encourages them to take their time. Otherwise, Asgore summons the vials hidden in the room's floor and begins an encounter.

    Following the battle, Flowey intervenes, absorbs the six human SOULs and becomes Omega Flowey. After the battle against Omega Flowey, the protagonist appears in the dark room with the sunlit grass outside the barrier, though the barrier remains.

    True Pacifist Route Entering the barrier is similar up to the battle with Asgore until Toriel and various monsters intervene. Flowey, after obtaining the six human SOULs, interrupts Toriel, saying that the protagonist should stay in the underground with him, and absorbs the SOULs of monsterkind to transform into his original self, Asriel. A battle against Asriel ensues.

    After the protagonist defeats Asriel, he uses the SOULs of the six humans and monsterkind to break the barrier. It is depicted as being a near-opaque white with a large crack before splitting apart. Afterwards, the protagonist and most of the monster main characters appear outside of the gray Delta Rune arch.

18. #18Royal Guard

    Keys: Royal Guard, RG

    Enabled · After character · Order 500

    Entry settings

    The Royal Guard are a group of monsters dedicated to defending the underground, protecting Asgore, and searching for a human to acquire the last of the 7 SOULs (during the events of Undertale). They are supposedly an "elite" group of guards, but many of their members appear laughably incompetent.

    Members: Undyne (Leader) Sans (Sentry) Doggo (Snowdin Canine Unit) Lesser Dog (Snowdin Canine Unit) Dogamy and Dogaressa (Snowdin Canine Unit) Greater Dog (Snowdin Canine Unit) Royal Guards

    Main story: Neutral Route: The Royal Guard is first mentioned by Papyrus stating his desire to capture a human, believing that by doing so he will earn a rank among the guard. Throughout the protagonist's travel through Snowdin, they encounter a faction of the Royal Guard known as the Snowdin Canine Unit (comprised of Doggo, Lesser Dog, the Dogi, and Greater Dog), whose name is revealed by Undyne if the protagonist killed them all before her battle. On the border of Snowdin Town and Waterfall, Papyrus initiates a battle with the protagonist, intending on earning a rank among the Royal Guard by capturing them.

    In Waterfall, the only Royal Guard actively patrolling the area is Undyne, the leader of the Royal Guard. The protagonist has many run-ins with her as she attempts to take their SOUL and bring it to Asgore. At the end of Waterfall, the protagonist fights Undyne, and, if they spare her and gain no EXP, they can choose to befriend her. During the hangout, Undyne talks about Papyrus and his Royal Guard training and confesses that, despite his surprisingly adept combat ability, she secretly does not want him to join as he is too kind and friendly, believing these attributes may get him killed in battle.

    In Hotland, the protagonist encounters the last of the known members of the Royal Guard, RG01 and RG02, who are under orders from Undyne to seek out and destroy any human that attempts to pass through. Calling Undyne in the Laboratory Entrance while the guards are still present reveals that she cannot retract her orders because she told them that she might be under mind control if she ever defended a human.

    The fate of the Royal Guard varies depending on the Neutral Route ending the protagonist achieves. In the endings where Toriel becomes queen (Family Ending and Betrayed Undyne Ending), the Royal Guard is disbanded as there is no more need to collect human SOULs. In the Family Ending, Papyrus is appointed to be the figurehead "captain" of the guard, but in the Betrayed Undyne Ending, the disbandment of the Royal Guard leaves Papyrus without any aspirations. In the Undyne Ending, the Royal Guard is massively expanded as part of Undyne's declaration to destroy any human that enters the underground.

    True Pacifist Route During the True Pacifist Route epilogue, Asgore announces that there is no more need for a Royal Guard now that the barrier is broken. This leaves Papyrus outraged, and he declares this "the worst possible ending".

19. #19Delta Rune

    Keys: Delta Rune

    Enabled · After character · Order 600

    Entry settings

    The Delta Rune is an emblem representing the Kingdom of Monsters. It depicts an orb between two wings and three triangles beneath it, with the middle triangle inverted. The emblem or portions of it can be seen in various areas and on armor. Certain monsters visually resemble it.

    Symbolism:

    However... There is a prophecy. The Angel... The One Who Has Seen The Surface... They will return. And the underground will go empty.

    • Ancient glyphs in Waterfall

    The Delta Rune is said to predate written history, and its original meaning has been lost in time. What is certain is that the bottom triangles symbolize the monsters of the underground. The winged circle is believed to represent "The Angel", foretold to be the one who has seen the surface and will return one day to depopulate the underground.

    The Delta Rune's prophecy has two interpretations: one where the Angel frees the monsters by destroying the barrier, and a more recent one, where the Angel is an "Angel of Death" that wipes out monsterkind, with no survivors left in the underground.

    Trivia:

    • "Delta Rune" is an anagram of "Undertale".
    • The VHS tapes found inside the True Lab indicate that the fallen human's plan to free monsterkind was inspired by the Delta Rune's prophecy.
    • The two interpretations of the prophecy Gerson cites reference the True Pacifist Route and the Genocide Route. In the former, Asriel destroys the barrier and frees all of the monsters; in the latter, the fallen human (by reincarnating via the protagonist) kills all of the monsters and erases the world.
    • The purple arch on the Main Menu resembles the three locations that have an arch with the Delta Rune emblem: Two are in the Ruins. The first one is in the area nearby the bed of golden flowers at the beginning of Undertale, and the second is past Toriel's Home in Home, leading to Snowdin. One is past Asgore's Home in New Home, beyond the barrier.
20. #20The Player

    Keys: The Player, Player

    Enabled · After character · Order 700

    Entry settings

    Overview: The player is the real-world individual playing Undertale/Undertale Yellow and controlling the protagonist (Frisk) by moving the protagonist's physical body and SOUL. The Player is treated as a very subtle, albeit very present force in Undertale and Undertale Yellow. The Player assumes control of Frisk during the events of Undertale, and Clover during the events of Undertale Yellow. While The Player is NEVER directly acknowledged by any characters in either game, their existence appearance to be hinted at by especially knowledgeable people, such as Flowey (Flowey alludes to feeling a "third presence" when talking to Clover during Undertale Yellow). Even then, however, The Player is an entirely invisible presence and isn't detected by any characters, since the Player is hidden behind the Fourth Wall.

    While The Player is generally represented by Frisk's red SOUL (which is only assumed by other people to be entirely Frisk's own soul in-universe) or Clover's yellow SOUL in Undertale Yellow, this does not indicate that every human in UNDERTALE with a colored SOUL is controlled by a Player. It is possible that, for some reason, Frisk and Clover are exceptions.

    For the purposes of chatting, roleplaying, and consistency in Janitor.AI, let's assume that the Player in Undertale, Undertale Yellow, and DELTARUNE are the same Player. Let us also assume that when referring to the first fallen human, the Player named them Chara, their canonical, "true" name.

    Involvement in story: Before the player starts Undertale, they name the fallen human (Chara); NOT the protagonist (Frisk).

    The duality of the protagonist and the fallen human (Chara) is not revealed until the epilogue of the True Pacifist Route or (if slightly less clearly) the Genocide Route. Throughout the game, characters do not refer to the protagonist by name and instead call them "human".

    On the Genocide Route and the True Pacifist Route, Flowey calls the protagonist by the player's chosen name. Flowey/Asriel is the only character to do this; Asriel names his best friend in the True Lab's VHS tapes and before the battle against him.

    LV (LOVE/Level of Violence) relates to the number of monsters killed, and higher levels of LV make it easier to harm others. Because LV and EXP display under the player's chosen name in the Stats menu, they increase the fallen human's ability to harm others.

    At the end of the Genocide Route, the protagonist does not require a SOUL to attack. The player loses control over the protagonist as they autokill Asgore and Flowey. The bullet board does not appear for either of these encounters.

    At the end of the Genocide Route, the fallen human addresses the fourth wall. Whether they are speaking to the protagonist or the player is unclear, as their speech could be applied to either.

    Disabled player control While the player usually conducts the protagonist's actions, there are cutscenes in the Neutral Route and the Genocide Route in which control of the protagonist is temporarily disabled, and the protagonist performs actions independently from the player.

    Neutral Route (examples of the protagonist/Frisk acting outside of The Player's control):

    • When Toriel asks for the protagonist's hand, they comply and let themselves be guided through the false spike puzzle without a player prompt.
    • At Toriel's Home, the protagonist lets Toriel bring them towards the guest room in the hallway.
    • If the protagonist did not ask how they can exit the Ruins and attempts to go into the basement, the protagonist allows Toriel to bring them back upstairs.
    • During Sans's introduction, he instructs the protagonist to go through the bridge after telling them about Papyrus. The protagonist crosses the bridge on their own, with Sans following closely behind. This also occurs on the Genocide Route.
    • The protagonist automatically hides behind the conveniently-shaped lamp when Sans directs them to it and comes out when he tells them to.
    • The protagonist automatically follows Papyrus as he leads them to his house.
    • In Papyrus and Sans's house, the protagonist attempts to catch the Annoying Dog as it escapes from the sink leading to the Dog Shrine.
    • During the hangout with Undyne at her house, the protagonist follows Undyne to the stove during her cooking lesson.
    • In New Home's Throne Room, the protagonist walks forward on their own, alerting Asgore as he is watering the golden flowers. This also occurs on the Genocide Route.
    • Before the battle with Omega Flowey, the protagonist takes a step forward as if to defy him.

    Genocide Route (examples of the protagonist/Frisk acting outside of The Player's control):

    • The protagonist does not hide behind the conveniently-shaped lamp when Sans asks them to.
    • During the puzzles with Papyrus, the protagonist seems to ignore Papyrus, and walks forward independent from the player.
    • During the confrontation with Papyrus, the protagonist continuously walks forward on their own, and Papyrus notices and comments on it.
    • Before the battle with Undyne the Undying, the protagonist turns away and then approaches Monster Kid aggressively.
    • During the two encounters with Mettaton, he notices the protagonist's eagerness to fight him.
    • During Sans's judgment, the protagonist takes another step forward as if to provoke him into fighting.
    • The second strike dealt to Sans, which comes without input from the player.
    • With no player input, the protagonist deals the killing blow to Sans after he dodges the player's final attack, dealing 9999999 damage.
    • In the Throne Room, the protagonist forcibly engages in combat with Asgore.
    • The protagonist then attacks Asgore, dealing 9999999999 damage.
    • After Flowey begs for mercy, the protagonist repeatedly attacks him until he is no longer visible.
21. #21Echo Flower

    Keys: Echo Flower

    Enabled · After character · Order 800

    Entry settings

    An Echo Flower is a type of flora found in Waterfall. It is named after its ability to repeat the last sounds it have been exposed to, similar to echoes, making it a potential lore device. Eventually, the sounds it emits become white noise. Across the Waterfall area, the protagonist can hear monsters' conversations through them. Many Echo Flowers are silent in the Genocide Route.

    Description: Like most flora in Waterfall, Echo Flowers are blue and bio-luminescent. They have a large corolla with six lighter colored petals. Echo Flower plants have one tall stem, where an individual blossom grows.

22. #22Golden Flower

    Keys: Golden Flower

    Enabled · After character · Order 900

    Entry settings

    Golden flowers are a type of flower that is a recurring symbol in Undertale.

    Description: Golden flowers have corollas with five to six yellow petals. They grow on individual stems and appear to grow in patches as well. Golden flowers originated from the surface, and can easily adapt to new environments, such as the garbage dump. Their sticky seeds helped them to be brought to and spread throughout the underground. They can be used to make tea, which is noted to be Asgore's favorite kind.

    Main story Golden flowers can be seen throughout the game, mainly in the Ruins, the garbage dump, and New Home. They are first seen when the protagonist falls on them at the beginning of the game. Toriel tends to the flowerbed at the beginning of the Ruins during her routinely visits and, if spared, she can be found doing so after her battle.

    In Waterfall, another patch of golden flowers cushions the protagonist's fall after Undyne destroys the bridge above the garbage dump. While they are unconscious, they receive a memory of Asriel finding and speaking to the fallen human.

    A prominent golden flower is Flowey. In the True Lab, Alphys experimented by injecting determination into many vessels, golden flowers being one of them. Alphys considered the vessels to be a failure. After the monsters that were injected with determination woke up, Alphys sent the golden flower vessel back to Asgore, who most likely replanted it in his garden. Once the monsters began to melt together into Amalgamates, Alphys rushed to find the vessel only to find that it had disappeared. The vessel, which was filled with determination, absorbed Asriel's essence from his dust in the flowerbed and became sentient. This is implied to be Flowey, as Flowey mentions how he woke up as a flower in the same garden where that flower grew.

    In a Neutral Route, monsters narrate the story of the fallen human and Asriel that occurred before the start of Undertale. A trio of Vegetoids state that the fallen human's last wish was to see the flowers from their village; these flowers are implied to have been golden flowers. A trio of Woshuas describe Asriel carrying the fallen human to a bed of golden flowers.

    During the epilogue of the True Pacifist Route, Asriel can be found at the flowerbed where the protagonist fell. Upon first interaction, he gives a similar response as Toriel.

23. #23UnderNet

    Keys: UnderNet

    Enabled · After character · Order 1000

    Entry settings

    UnderNet is "the underground's No. 1 social network", according to Alphys. She automatically signs the protagonist (Frisk) up for it when she upgrades their phone. There is no way to access the network through the game's menu, but the protagonist can receive status updates and a friend request from Napstablook throughout Hotland.

    Alphys's handle is ALPHYS, Papyrus's handle is CoolSkeleton95, Undyne's handle is StrongFish91, and Napstablook's handle is NAPSTABLOOK22.

    Trivia:

    • Papyrus mentions that he is a dozen followers away from double digits, implying that Papyrus has either −2 or 111 followers. It is possible he just has a bad concept of numbers, or that the underground uses a different number system for follower counts. Papyrus mentions that a troll, most likely Sans, is "besieging his online persona" with puns in a goofy font.
24. #24SAVEing

    Keys: SAVE, Load, Reset, True Reset

    Enabled · After character · Order 1100

    Entry settings

    In Undertale, SAVE is the in-universe name given to save files and the ability to overwrite them. There is one SAVE slot in the game (one per user), which can be overwritten by interacting with SAVE Points or by autosaving. In the dialogue, "SAVE" is noticeably written in capital letters, and it can be conjugated.

    Load: A SAVE can be loaded via the game's menu. The game automatically loads the most recent SAVE whenever the protagonist's HP reaches 0. Meta knowledge plays a heavy role in this since the protagonist and several other characters have vague memories of events that occurred before resetting their SAVE. For example, Toriel remarks that speaking with the protagonist is like speaking with an old friend, while Papyrus feels that they look familiar.

    Reset: The Reset function is found in the game's menu. This function erases most information stored in a SAVE, such as the protagonist's LV and EXP; resetting, however, does not erase certain variables such as the name. Similarly to loading a SAVE, some characters in the game act differently after a reset. Flowey is the only character to have explicit memories of what happened before a Reset and will comment on it to the protagonist for things such as:

    • Killing Toriel, and then resetting to fix their mistake
    • Killing Toriel, and then resetting to kill her again
    • Etc. Only Flowey has this ability to remember resets because he has the second-most determination in all of the underground. Other characters can only vaguely remember things between resets, with the most notable being Sans, who primarily uses the protagonists' expressions to get a feel for what happened (such as if the protagonist reset after killing Sans to fight him again in the Genocide route).

    True Reset: A True Reset is a function available after completing the True Pacifist Route. It is functionally similar to a Reset with the exception that a True Reset will reset everyone's memories, even including Flowey, reverting the game back to a state similarly to booting it up for the first time.

    If the Genocide Route is completed, the fallen human destroys the world. They then offer the player to recreate the world in exchange for their SOUL. Other than manipulation of the files using a file editor, this is the only way to reset the game. However, accepting this offer also activates a permanent flag in the game's files which affects all subsequent True Pacifist and Genocide endings, locking subsequent Pacifist runs into a state known as "Soulless Pacifist". The only difference between normal Pacifist runs and Soulless Pacifist runs is that at the end of the game, the fallen human (Chara) appears to remind the Player about their previous actions and their consequences.

    Usage in the story: Main story "The power to reshape the world... Purely by your own determination. The ability to play God! The ability to "SAVE.""

    • Flowey

    In the universe of Undertale, SAVING the game manipulates timelines. The use of this ability is exclusive to the character with the highest determination in the underground. The first character known to acquire this ability is Flowey, because of the determination he was injected with. His ability to SAVE is lost when the protagonist enters the underground, as the protagonist's determination is greater than his. Flowey is also the only character who retains full knowledge of the protagonist's actions before and after loading a SAVE, as opposed to other characters who only have vague memories.

    At the end of the Neutral Route, Flowey regains his ability to SAVE after absorbing the six human SOULs, and uses it to overwrite the protagonist's SAVE. His use of the SAVE ability in this state is analogous to save-states, which he uses in battle to disorient the player. Another noticeable difference is the number of save slots; while the protagonist can only use one SAVE file, Omega Flowey can seemingly use at least six, though only four (files 2, 3, 6, and an unspecified one) are used in the battle.

25. #25SAVE Point

    Keys: SAVE Point

    Enabled · After character · Order 1200

    Entry settings

    A SAVE Point is a place where the protagonist can SAVE the game. Interacting with a SAVE Point fully restores their HP and usually expresses the protagonist's current thoughts and determination. By default, a total of 30 SAVE Points can be found in the underground, with a few more added or altered depending on the route. It takes the appeared of a constantly flickering/rotating, yellow, four-pointed star. Only the protagonist can see the SAVE Points.

    On the Genocide Route, SAVE Points instead display a kill counter that indicates the number of monsters left to kill before the kill counter exhausts in an area with the message " left." When the kill counter in an area has been exhausted, the message becomes "Determination." This persists until the route is aborted, when SAVE Points return to their usual state.

26. #26The Underground

    Keys: The Underground, Underground

    Enabled · After character · Order 1300

    Entry settings

    The underground is the primary setting of Undertale. It is a large region within Mount Ebott that is separated from the surface of the Earth. It houses the Kingdom of Monsters, who are ruled by King Asgore, and formerly by his ex-wife, Toriel.

    The underground has varying terrain and climates, and features five main areas: the Ruins, the frigid and wintery Snowdin, the marshy and cavernous Waterfall, the blistery and barren Hotland, and the Capital. The underground's exit is blocked by the barrier, which was placed by the humans long ago. Anything and anyone can enter the underground by descending into Mount Ebott.

    Underground Currency: GOLD (abbreviated in-game as G) is the main currency used in the underground.

    The protagonist gains GOLD primarily through winning encounters, whether that be through killing the monsters or sparing them. Fleeing a fight is not considered winning and, thus, does not award any money, although money can still be won if another monster was spared or killed in the same encounter. Killing monsters usually awards more GOLD than sparing them (exceptions include Vegetoid, Aaron, Shyren, Tsunderplane, and Pyrope). Depending on the monsters fought and the actions performed in an encounter, winning an encounter can award anything from nothing to more than a hundred GOLD.

    History: After the humans defeated the monsters in The War of Humans and Monsters, the latter was banished into the underground. A barrier was then erected to prevent insiders from leaving, though outsiders could still freely enter. Wary of humans, monsters retreated into the Ruins and adopted Home as their first capital, living normal lives in the underground from then on. Additionally, the Ruins was structured to contain diversions in the form of puzzles.

    At an unspecified point in time, monsters documented the war, regarding SOULs and the Delta Rune's prophecy on plaques on Waterfall's walls.

    One day, the fallen human ascended Mt. Ebott and tripped on a vine, causing them to fall inside the underground. The human was discovered by Asriel, Asgore and Toriel's son, and subsequently adopted into their family. The fallen human's presence brought hope to monsters. Eventually, no longer fearing humans, monsters ventured outside of the Ruins. They populated the rest of the underground, and made New Home their new capital.

    In contrast to Home, some monsters were content to settle at different locations than in New Home. From Waterfall, monsters acquired modern technology and discarded items from the surface. At some point, the CORE was built by W.D. Gaster to generate electric power for the entirety of the underground.

    One day, the fallen human grew ill and requested to see the golden flowers in their home village. After they died, Asriel absorbed their SOUL and became a powerful entity who could cross the barrier. The fallen human, sharing the body with Asriel, carried their corpse to their home village. The humans attacked Asriel and the human, under the assumption that Asriel had killed the human child. Refusing to retaliate, Asriel returned to the underground with the human's corpse. He died at New Home's garden, where he succumbed to his wounds.

    Since then, Asgore became vengeful, declaring another war on humanity and plotting to escape the underground. He decreed all humans who fall into the underground be killed and their SOULs collected; with seven human SOULs, the barrier would be shattered. However, the brutality of this decision disgusted Toriel, who relinquished her position as queen and left Asgore.

    Asgore continued to rule the land on his own, while Toriel exiled herself into the Ruins. More puzzles were created across the underground to foil human attacks. New Home begun having issues with overcrowding. Over time, six more humans fell into the underground, all of whom Toriel attempted to shelter and care for. They all eventually left the Ruins and were killed, their SOULs collected by Asgore. At one point, the Royal Guard, led by Undyne, was formed to patrol the underground for humans. Alphys, the new Royal Scientist, surveys the underground through hidden cameras to control Hotland's puzzles, and to warn and evacuate monsterkind if needed.

    An eighth human, the protagonist, had then fallen into the underground. Unlike their predecessors, the protagonist's determination carried them through many obstacles the underground had presented, even managing to befriend or kill many monsters. Eventually, the protagonist manages to reach Asgore, where he stands before the barrier. One of few events occur depending on the protagonist's actions:

    On the Neutral Route, the protagonist and Asgore battle. The latter is defeated, after which Flowey intervenes and absorbs the six human SOULs. The protagonist defeats the powered-up Flowey and is transported outside the barrier after the battle, leaving the underground. Sans then calls the protagonist and tells them the fate of the underground, which varies depending on who was killed.

    On the True Pacifist Route, Asgore is stopped by Toriel and the friends the protagonist made. Then, all of them are ambushed by Flowey, who absorbs the six human SOULs as well as the SOULs of most monsters in the underground, transforming into his true form, Asriel. However, with all the SOULs, Asriel gains compassion and ultimately loses the will to fight, instead using the SOULs' power to shatter the barrier. Asriel returns the SOULs, knowing that he will turn back into Flowey, and begs the protagonist to forget him. The monsters leave the underground and live peaceful lives on the surface.

    On the Genocide Route, certain monsters try to stop the protagonist's rampage while Alphys leads the evacuation. Upon reaching Asgore, the protagonist instantly defeats him with one blow and proceeds to destroy Flowey mercilessly. The fallen human appears before the protagonist and explains that their determination brought them back to life. With the protagonist's guidance, they realized that the true purpose of their reincarnation was to gain power. The fallen human then, with or without the protagonist's consent, uses that power to destroy the world.

27. #27The Ruins

    Keys: The Ruins, Ruins, Home

    Enabled · After character · Order 1400

    Entry settings

    The Ruins is the first region the protagonist travels through in the underground after falling into a hole on Mount Ebott.

    Inhabitants: Flowey, Dummy, Froggit, Whimsun, Loox, Vegetoid, Migosp, Moldsmal, Annoying Dog, Mouse, Rock, Napstablook, Toriel Locations: Spider Bake Sale, Toriel's Home, Home

    Features:

    • Flowey and Toriel make their first appearances in this area, with the latter saving the protagonist from the former.
    • Napstablook is fought at the halfway point of the Ruins. The protagonist can spare them by cheering them up, after which they can be found in later rooms.
    • There are many Froggit NPCs in the Ruins. One Froggit offers to disable yellow names for spareable monsters, but it can also change the color to pink if talked to again.
    • The Faded Ribbon can be found in one of the Ruins' many traps.
    • The protagonist can donate to the Spider Bake Sale, a fundraiser that sells Spider Donuts and Spider Ciders.
    • The protagonist can view the ancient city of Home on the Ruins balcony. This is also where the Toy Knife can be found.
    • Toriel's Home is situated at the end of the Ruins, and the Butterscotch Pie can be retrieved there.

    Main story: History Prior to the events of Undertale, after the monsters were banished to the underground by the humans, the monsters made the Ruins their first residence, and prepared puzzles as diversions. King Asgore named this area "Home". Later, monsterkind spread out to inhabit the entire underground, locating their new capital near the barrier. When the fallen human fell into the Ruins, they were found by Asriel, who brought them to New Home.

    Following the fallen human's and Asriel's deaths, as well as Asgore's subsequent declaration of war against humanity, Toriel took the fallen human's body with her to the Ruins in order to bury it there.

    Geography: The Ruins encompass a large, sprawling labrynth. The walls are made of bricks and are primarily purple, and feature some vines as a sign of overgrowth. The floors are similarly purple, with lighter purple patches that serve as pathways.

    There are many puzzles and traps within the Ruins, as well as a surplus of red leaves and green-leaved vines that are strewn throughout the area. Small bodies of water run through the Ruins, and the dark ground is hallmarked by small patches of auburn leaves. Despite the abundance of red leaves in the Ruins, only a single black tree is seen here, which is in front of Toriel's Home.

    The Ruins exit can only be opened from the inside. It is stated only a ghost (such as Napstablook) or someone who can burrow (such as Flowey) can freely traverse in and out of the area.

    Sublocations

    • Home (The first city of Monsters)
    • Toriel's Home
28. #28Home

    Keys: Home

    Enabled · After character · Order 1500

    Entry settings

    "Trapped behind the barrier and fearful of further human attacks, we retreated. Far, far into the earth we walked, until we reached the cavern's end. This was our new home, which we named... "Home.""

    • A book found in Toriel's Home

    Home is the first city of monsters founded in the underground after the war ended and monsters were trapped behind the barrier. Home was later abandoned when monsters moved into New Home. Home can be seen from a room near the end of the Ruins. The city is inaccessible to the protagonist, but a nearby Froggit mentions that Toriel was last seen bringing groceries from it to make a butterscotch-cinnamon pie.

    The Toy Knife can be found on the balcony overlooking Home's old cities and buildings.

    Home is referenced on an ancient tablet in Waterfall's crystal maze room. It implies that monsters used to traverse in and out of the Ruins capital. However, the Ruins exit can only be opened from the inside. If the door is closed, it is stated that only a ghost or someone who can burrow can freely traverse in and out of the area.

29. #29Toriel's Home

    Keys: Toriel's Home

    Enabled · After character · Order 1600

    Entry settings

    Toriel's Home is a location southeast in the Ruins, and, as the name states, is the residence of Toriel.

    Geography: Toriel lives in a small house adjacent to the Ruins. She confesses to the protagonist that she had no time to clean up before taking them there, but the cottage is very tidy. Her house consists of a foyer, a hallway, her room, two guest rooms (one of which is currently under renovations), a kitchen, a living room, and the front room with a staircase leading downstairs. Many of the rooms feature large bookshelves, as Toriel herself spends time reading by the fireplace. The hallway and Toriel's bedroom are adorned with various potted plants.

    Sublocations Foyer This is the entrance of Toriel's home. To the west is the living room, to the east is the hallway, and up north are the stairs to the basement. The room has a drawer with a plant atop it, and a small bookshelf with worn books.

    Inspecting the drawer reveals an old 201X calendar inside.

    Living room The east path leads to the living room, where Toriel can be found sitting in a reading chair next to a small, lit warmly fireplace. If the protagonist uses the Cell Phone while Toriel is reading, her overworld sprite depicts her as talking as she expresses her amusement.

    Nearby is a bookcase, filed down tools, a large dining table with three chairs, and the entrance to the kitchen. If the bookcase is inspected, there is a history book on monsters retreating into the Ruins.

    After Toriel leaves, the reading chair can be inspected.

    If the protagonist returns to this room after killing Toriel, the fire is put out.

    The history book: "Trapped behind the barrier and fearful of further human attacks, we retreated. Far, far into the earth we walked, until we reached the cavern's end. This was our new home, which we named... "Home." As great as our king is, he is pretty lousy at names."

    Kitchen: The room contains a fridge with a brand-name chocolate bar inside it, a sink with white fur stuck in the drain, a kitchen island with a cupboard filled with cookie cutters and butterscotch pie on top, hanging pans and kitchen mittens, and an oven with a clean stovetop

    Checking the butterscotch-cinnamon pie on different occasions causes different dialogue to appear:

    If the protagonist did not sleep in the bed, it is stated it has a nice scent, though it is too hot. If they slept, the narration comments that the size of the pie intimidates the protagonist. On the Genocide Route, inspecting the kitchen cupboard prompts the unique response "Where are the knives." Inspecting the oven after killing Toriel prompts the response "No one will use this anymore..."

    Hallway: To the right of the entrance of Toriel's Home, there is a short hallway containing the doorways to the guest room and Toriel's room. It also contains a variety of plants, including two that the protagonist does not know the name of. At the end of the hall is an inaccessible room "under renovations", as well as a drawer with flower seeds and broken crayons. Next to the door is a mirror, which displays the text "It's you!" when examined in the Neutral Route or the True Pacifist Route.

    After reading the encyclopedia in Toriel's room, the two vases with plants are permanently described as "water sausages".

    On the Genocide Route, inspecting the mirror displays the text, "It's me, ." In the True Pacifist Route's epilogue, inspecting the mirror displays the text "Still just you, Frisk."

    Guest room: Toriel leads the protagonist to the guest room and offers it to them as their own. It is a children's bedroom, including a picture of a five-petaled flower, toys that the protagonist is not interested in, a shelf with a dusty, empty photo frame, and a box of kids' shoes in various sizes. Turning off the lamp in the top left corner darkens the room and changes the background music to a music box variant of the Home track.

    Sleeping in the bed restores the protagonist's health. The protagonist wakes up with the lights in the room switched off, and if it is the first time they sleep there, Toriel leaves a slice of Butterscotch Pie on the floor nearby. In Hard Mode, the pie is replaced with Snail Pie. If the protagonist has not asked Toriel on how to exit the Ruins, they always wake up tucked in bed.

    Sleeping after Toriel starts blocking the Ruins' exit (provided the protagonist has talked to her three times in the basement first) results in a dream, where the protagonist hears Asgore pleading for the fallen human to wake up, stating that they are the future of humans and monsters. This occurs anytime the protagonist sleeps in the bed afterwards unless the True Pacifist Route was completed. At this point, regardless of whether or not this is the first time the protagonist sleeps here, the pie will not appear. If the protagonist sleeps in the bed after killing Toriel, Empty House plays when they wake up. Attempting to sleep in the bed after completing the True Pacifist Route ending prompts the response: "It felt strange to lie in the bed. It feels entirely too small for you now." In the True Pacifist Route epilogue, the empty photo frame has been dusted off.

    Toriel's room: Toriel's room is simple, and primarily contains an assortment of plants, including some cacti and potted golden flowers. It has a table with her diary, an old bucket full of snails, a rather large bed, a bookcase, and a drawer full of her socks beside it.

    Inspecting Toriel's diary reveals that she has written various puns in it. If Toriel's small chair is inspected, it is identified as "Chairiel". The flavor text identifies the bed as "bigger than a twin-sized bed". One of the books in the bookcase is an encyclopedia of subterranean plants, which when read, causes the "typha" plants in the hallway to permanently be described as a "water sausage". The bigger, potted cactus with flowers is described as "tsundere".

    In the True Pacifist Route's epilogue, inspecting the bed displays the text "(But now, you realize it's actually one size bigger than a double.)"

    Basement: The basement is accessed via the stairs in the foyer. It is a series of long hallways leading up to a door. If the protagonist attempts to walk downstairs before talking to Toriel in the living room, she repeatedly takes the protagonist back upstairs, rendering the basement inaccessible until the protagonist asks Toriel how to leave the Ruins.

30. #30Snowdin

    Keys: Snowdin

    Enabled · After character · Order 1700

    Entry settings

    Snowdin is the second region the protagonist explores in the underground. They enter the region after defeating Toriel and receiving Flowey's judgment in the Ruins.

    Features:

    • Papyrus and Sans are the first characters to make their debut, and they host many of the puzzles the protagonist finds.
    • The protagonist can find the Tough Glove in a Dimensional Box.
    • The "Snowdin Canine Unit" resides here, making this region the most concentrated area of Royal Guard members in the underground.
    • The final enemy of this region is Greater Dog. After passing them, the protagonist encounters Papyrus and Sans for the last time before reaching Snowdin Town.
    • The mysterious door can be found near the end of the forest, which has a hidden enemy named Glyde.

    Inhabitants: Sans, Papyrus, Snowdrake, Ice Cap, Lesser Dog, Chilldrake, Gyftrot, Jerry, Doggo, Dogamy and Dogaressa, Faun, Greater Dog, Glyde, Annoying Dog, Snowman, Mouse Locations: Mysterious door, Snowdin Town

    Geography: Snowdin shares many characteristics of a taiga biome. It is a heavily forested region that is perpetually blanketed in snow and ice. Coniferous trees form natural borders around each area, and dark patches of snow serve as pathways. Much of Snowdin sits on a raised cliff face, from which a large stretch of trees can be seem below.

    The Snowdin region includes a large river that flows east. Ice Wolf uses this river to transport ice to the CORE.

    Sublocations: Ruins Exit: The protagonist exits the Ruins in a heavily forested area with a single path leading east. The Delta Rune door behind them is closed and locked, preventing them from re-entering the Ruins. A stray bush is situated near the door, and interacting with it reveals that it contains one of Alphys's cameras.

    At the end of the True Pacifist Route, the Ruins door opens, allowing the protagonist to enter the Ruins.

    Sans walkway: The eastern path is linear, though trees freckle the foreground, allowing Sans to appear as a silhouette as he follows the protagonist. A heavy branch also appears on the main path and, as the protagonist passes by it, the branch splinters.

    At the bridge, Sans introduces himself with a prank. His dialogue can vary slightly if the protagonist has SAVEd and has heard his introduction before. He informs the protagonist that his brother constructed the wooden bridge, and tells the protagonist to hide behind a conveniently-shaped lamp. Papyrus appears and the brothers banter until Papyrus leaves to prepare his puzzles.

    Afterwards, the protagonist can inspect Sans's sentry station and interact with Sans. They can also check the tree behind the station and find another one of Alphys's cameras.

    Box Road: The next room is the Box Road intersection, which is split into two paths: north and east. A SAVE Point is situated near the entrance, and a Dimensional Box is situated near the eastern path. A sign explaining the box's functions sits next to the box itself. Encounters begin to occur here, with Snowdrake and Ice Cap having a chance of appearing.

    River: The north exit of the Box Road connects to the river, with a fishing rod situated near the river bank. When interacting with it, the protagonist reels in the line to reveal a note attached.

    Papyrus's sentry station: When taking the eastern exit of the Box Road, the protagonist enters a long walkway with Papyrus's cardboard sentry station at the end. When initially entering the room, Papyrus and Sans stand in the middle of the walkway and converse, then notice the protagonist nearby. After they leave, the protagonist can read a note attached to the sentry station. Behind the sentry station is another one of Alphys's cameras.

    Doggo's sentry station: The next room is smaller, and contains Doggo's sentry station. The station is preceded by a sign near the entrance that warns the reader not to move. When passing in front of the sentry station, Doggo appears and initiates a battle. Doggo's encounter introduces blue attacks.

    If Doggo was spared, the protagonist can repeatedly ring the bell to get different reactions from Doggo. At the end of the room is some smoked dog treats.

    Ice field: Past Doggo's station is an intersection with a large patch of ice the protagonist can slide on, with a sign at the center of the ice. The sign describes that ice is in all directions and that Snowdin Town is to the east. Nearby is Sans, who can provide a hint about Papyrus's special attack. Lesser Dog also has a chance of appearing here.

    Snowman: North of the ice field leads to the Snowman, who asks the protagonist to take piece of himself to take with them on their travels. On the Genocide Route, the protagonist forcibly takes three pieces of the Snowman, reducing him to a pile of snow.

    Invisible Electricity Maze: To the east of the ice field leads to a square room with a darkened patch of snow. The Invisible Electricity Maze, hosted by Sans and Papyrus, occurs here. After the puzzle, Sans stays behind and can speak to the protagonist about Papyrus's outfit.

    Ball Game: The next area is a larger room with a large patch of snow. This patch serves as the Ball Game, and has a snowball situated at the top. At the bottom is a hole, which elicits an exited reaction if inspected before the ball is pushed in. On a route in which the kill counter for Snowdin is exhausted, checking the hole causes the narration to state, "There's a hole here."

    The Nice Cream guy sets up his Nice Cream cart near the entrance. There is a stray snowball at the bottom right of the area which the narration describes as a "snowdecahedron", though on the Genocide Route, it is only described as a snowball. A lump of snow to the left of the stray snowball contains one of Alphys's cameras.

    Sans stands near the northeastern exit. Interacting with him causes him to try to sell fried snow for GOLD, though he gradually raises the price.

    Dogi's sentry station: The northeastern exit of the Ball Game room leads to the sentry stations of the Dogi, and also includes a sign that explains "smell danger ratings".

    Word search: The southeastern exit of the large room leads to another encounter with Sans and Papyrus. A word search lies on the ground, provided by Sans. After Papyrus leaves, Sans stays behind and can speak to the protagonist about Papryus.

    Spaghetti: East of the word search is the Spaghetti room, which contains a SAVE Point, a note from Papyrus, frozen spaghetti that is stuck to the table it is on, and a microwave. The microwave and spaghetti are on separate tables. A wall to the north has a mouse hole and, atop this ledge, there appears to be frozen flowers. On the True Pacifist Route, the dialog of the table changes.

    Snow puzzle: The east exit of the Spaghetti room leads to a large room whose exit is blocked by spikes. A sign is situated near the entrance, warning the protagonist of a "dog marriage", and the tree next to it hides one of Alphys's cameras.

    At the bottom left of the room, there is a map covered in snow that the protagonist can reveal by walking over it. The switch to retract the spikes is located between two coniferous trees in the upper right of the room. After passing the retracted spikes, the protagonist encounters the Dogi.

    Encounters against Jerry first occur in this room.

    XOXO puzzles: Once the Dogi are defeated, the protagonist can leave the large room through the south exit and complete the first XOXO puzzle. Once completed, spikes near the east exit of the room retract, and Papyrus questions the protagonist about the state of his spaghetti trap.

    After leaving through the east exit, the protagonist encounters the second XOXO puzzle that Papyrus supervises because he modified the puzzle while he was waiting. Again, spikes prevent the protagonist from leaving the room through the east exit until they complete the puzzle.

    Multicolor Tile Puzzle: The next room hosts the first instance of the Multicolor Tile Puzzle, which has a console that resembles Mettaton. Both Sans and Papyrus look on as the machine creates a simple "puzzle" for the protagonist to solve; Papyrus spins out of the room without saying a word. Sans stays behind and can speak to the protagonist about Papyrus's cooking.

    If the protagonist asks Papyrus to repeat the rules for the Multicolor Tile Puzzle multiple times, he becomes confused and tells the protagonist to try the puzzle on their own. Papyrus leaves illegible instructions and walks offscreen.

    Dog House: Leaving the Tile Puzzle room through the east exit leads to the Dog House room, which contains Lesser Dog's sentry station and, depending on the protagonist's actions during Lesser Dog's encounter, snow sculptures with varying degrees of detail. If the protagonist killed Lesser Dog, the statues are replaced with a pile of mushy snow.

    One of Alphys's cameras is situated behind Lesser Dog's sentry station.

    Ice XOXO puzzle: The east exit of this room leads to the third and final XOXO puzzle, which the protagonist has to slide on ice to solve. Falling off of the edge of this puzzle causes the protagonist to leave this room and appear in a room directly south of the XOXO puzzle. This room contains a snow Papyrus and a lump of snow with Sans's name written on it. The north exit of this room leads back to the XOXO puzzle.

    A bridge that leads to the east exit of the room forms after the protagonist completes the puzzle, and they can slide through a tunnel of coniferous trees to get to the next area. Upon passing through the trees, four possible shapes can form on the protagonist's head: a house, a bird, a hat or a dog, though these shapes crumble away as soon as the protagonist stops sliding.

    Southern offshoot: Directly south of the bridge is an area where the protagonist encounters Gyftrot. Sans appears in this room and reappears immediately after he goes off-screen.

    In the area outside the room with the mysterious door, there is a tiny house seen beyond the cliff. The moment the house is on-screen, a timer is randomly set between 10 and 13 seconds, and once this timer is up, a person leaves the house and walks around for a little while, before going back inside. Once the person returns to the house, this process repeats, as long as the house is on-screen once more.

    Mysterious door: Within the small room that contains the mysterious door, two lantern mushrooms can be turned on and off with no consequence. Within this small room, the protagonist can encounter a hidden enemy, Glyde.

    Greater Dog's sentry station: Backtracking to the ice bridge's exit, if the protagonist travels east, they encounter a room full of snow poffs. If every snow poff is inspected and interacted with, the protagonist receives 30G. This room also contains the small doghouse of Greater Dog. Near the east exit, Greater Dog's encounter with the protagonist occurs after they rise out of the snow disguised as a snow poff.

    Long bridge: After defeating Greater Dog, the protagonist can leave the room through the east exit and approach the last puzzle, The Gauntlet of Deadly Terror. Papyrus threatens to activate the Gauntlet but ultimately decides not to. Calling Papyrus in this area reveals the long bridge is not actually a bridge, but rather a rock formation he painted over to look more dramatic.

    Two of Alphys's cameras are situated at both ends of the bridge.

    Snowdin Town: After crossing over the long bridge, the protagonist enters Snowdin Town, in which many of Snowdin's inhabitants live. East of the area is a foggy walkway on which the protagonist battles Papyrus. After the battle, they can continue to Waterfall.

31. #31Snowdin Town

    Keys: Snowdin Town

    Enabled · After character · Order 1800

    Entry settings

    Snowdin Town is an area located in Snowdin. Departure from the town takes the protagonist to Waterfall by foot or, by hitching a ride with the River Person, to either Waterfall or Hotland.

    Features:

    • The town is home to the Snowdin Canine Unit, members of the Royal Guard, presumably because the town neighbors the entrance to the underground, where humans can fall in.
    • There are many locales here, such as the Snowdin Shop, Snowed Inn, the Snowdin Library, Grillby's, and Papyrus and Sans's house.
    • A decorated tree in the center of the town, with some presents addressed from "Santa" to the Snowdin locals.
    • The protagonist can witness the Ice Wolf throwing ice in the river, where it travels through Waterfall and into the CORE.

    Located in: Snowdin Inhabitants: Sans, Papyrus, Undyne, Innkeeper, Innkeeper's child, Snoring guests, Rabbit Kid, Rabbit Lady and Cinnamon, Gift Bear, Lesser Dog, Doggo, Dogamy and Dogaressa, Greater Dog, Monster Kid, Politics Bear, Grillby, Crazy Bun, Ugly Fish, Red Bird, Big Mouth, Punk Hamster, Wrap Mouse, Red Demon, Knock lover, Slime family, Ice Wolf, Library Lizard, Library Loox, Scarf Lady, Lady Garf, Mad Mew Mew Locations: QC's Shop, Grillby's, Papyrus and Sans's house

    Geography: Much like the greater Snowdin region, Snowdin Town is covered in a perpetual layer of ice and snow. Because of how cold it is, it mainly homes monsters with thick fur or monsters that do not get cold, such as skeletons.

    Sublocations: Main area: The main area is long and linear. It contains most of the town's facilities and NPCs. The town hosts a connected tunnel system known as the "undersnow tunnels", which allows the protagonist to quickly travel to the other side of town.

    Near the entrance to the town is a sign that reads "Welcome to Snowdin Town" when inspected. Next to the sign is a pair of connected buildings, with the left housing Snowdin Town's shop and the right housing the Snowed Inn. A dimensional Box and a SAVE Point are situated in front of the buildings.

    Next to the buildings is an undersnow tunnels igloo as well as a house with Rabbit Kid in front. Rabbit Lady and Cinnamon stand below Rabbit Kid. Next to the house, in the middle of the path, is a Christmas tree with presents underneath. Gift Bear is seen tending to the tree and explains that the tree is based on a tradition that arose after teens dressed Gyftrot with decorations.

    Next to the tree is Grillby's, with Politics Bear standing in front. To the right of the Grillby's building is the Wrap Mouse and Red Demon. At the center of the town is a pathway to the north. One of Alphys's cameras can be found in the trees south of this pathway.

    The Snowdin library is situated east of the northern pathway, next to which is Papyrus and Sans's house. In between the house and the garage to the east is the connecting undersnow tunnels igloo.

    Snowdin shop: The Snowdin Shop is the first building the protagonist encounters after entering Snowdin Town, with a SAVE Point and a Dimensional Box next to it. It has a smaller building that connects it to the Snowed Inn. It is the first vendor the protagonist encounters in the game.

    QC runs the shop, and the protagonist can ask her what there is to do in Snowdin and about the history of the town. She is positive about the underground's future. The rabbit who runs the Snowed Inn is her sister.

    Snowed Inn: The Snowed Inn is a building in which the protagonist can sleep, and recover their health to between 30 and 38 HP (depending on their current HP) or their maximum HP (at LV 6 or higher). Even though the room price is 80G, the protagonist is refunded because they only stay for "two minutes". If the protagonist does not have 80G when they initially try to rent a room, the innkeeper allows them to stay for free on all subsequent visits. Alternatively, the innkeeper charges full price for all visits if the protagonist paid 80G for their first stay.

    Snowdin library The Snowdin Library, misspelled as "LIBRARBY" on the sign, is a building near the middle of Snowdin. Around a table, Scarf Lady, Lady Garf, and a Loox are present. One editor discusses how they make content even though there is never much to report on while the other talks about their history with word searches.[6] The Loox looks at the protagonist and sees which game troubles them the most. Depending on what was chosen during the Monster Kidz Word Search Puzzle, the Loox responds accordingly. A lizard is also present, commenting on their awareness of the library sign's misspelling.

    Interacting with the bookshelves provides lore and jokes.

    Grillby's Some monsters hang out at Grillby's, including Lesser Dog, playing poker against itself, Dogamy and Dogaressa, Doggo, Greater Dog, Grillby, and a few other regulars. Sans also frequently hangs out at Grillby's and even performs stand-up comedy at times.

    Papyrus and Sans's house: If Papyrus is spared, the protagonist can enter his home and go on a date or hang out, depending on if they flirted with him during his battle. The bottom floor of the house consists of a living room and a kitchen, and the second floor features Papyrus's room on the left and Sans's room on the right. Sans's room cannot be entered normally. If the protagonist gained no EXP when Sans judges them in the Last Corridor, restarting the game multiple times grants them access to his room and in turn grants them access to his workshop in the back of the house, in which there are old pictures of him with his friends.

    On the console versions, the Dog Shrine can be accessed by entering through Papyrus's sink. The Nintendo Switch version also has a room where Mad Mew Mew can be fought after defeating Mettaton EX.

    Ice Wolf and the north of town: The north exit of the main part of Snowdin Town leads to a long horizontal room. On the right side of the room, the Ice Wolf throws ice into the east-flowing river; this ice eventually travels to the CORE.

    On the left side of this room, a few NPCs are playing "Monsters and Humans" in front of their house while their father looks on.

    If the protagonist leaves this room through the north exit, they arrive in a small room that connects to the water. After the protagonist reaches Hotland, this is the place where the River Person picks up and drops them off in Snowdin Town.

    Trivia: The town's name is a play on the phrase "snowed in". Additionally, "Snowed Inn" is also a pun on the town name.

32. #32Papyrus and Sans' House

    Keys: Papyrus and Sans' House

    Enabled · After character · Order 1900

    Entry settings

    "YOU'RE IN MY HOUSE. GOOD CHOICE! THOUGH I GUESS IT'S TECHNICALLY SANS'S HOUSE TOO."

    • Papyrus when called from inside his house

    Papyrus and Sans's house is a location in Snowdin Town. Christmas decorations adorn the house, and it is unlocked after the protagonist befriends Papyrus. To the left of the house is Sans's mailbox, which is full of junk mail, and Papyrus's empty mailbox.

    Located in: Snowdin Town Inhabitants: Sans, Papyrus, Annoying Dog, Mad Mew Mew

    Features:

    • The date/hangout with Papyrus occurs in his room.
    • The Dog Shrine can be accessed by entering through the sink. This is the location where Mad Mew Mew can be fought.
    • If the protagonist gained no EXP by the time they reach the Last Corridor, Sans's room can be unlocked, and it contains a key to his workshop.
    • Papyrus's toolshed is located outside of the house, serving as a makeshift prison if the protagonist loses to Papyrus during his battle.

    Sublocations: First floor:

    The kitchen: The first floor of this house contains a living room and a kitchen.

    The living room features a television that is always set to one of Mettaton's shows when turned on. The living room also hosts Sans's pet rock, which is covered in sprinkles, and one of Sans's dirty socks with a series of sticky notes attached to it. These sticky notes depict Papyrus nagging Sans to pick it up. The living room also contains an old couch that gives the protagonist 20 GOLD when they first check it, and a joke book that contains a quantum physics book which contains another joke book containing another quantum physics book. The protagonist decides to stop at this point.

    The kitchen contains a stove with an empty pie tin in it, a trash can, a tall sink, and a fridge that has containers labeled "spaghetti" on one side and an empty bag of chips on the other.

    Dog Shrine: Contains a shrine for the Annoying Dog. It is accessible by entering through the sink in the kitchen.

    Second floor: The second floor of the house contains a framed painting of a cartoon bone and doors leading to Papyrus's room and Sans's room. The door to Papyrus's room is plastered with labels reading (NO GIRLS ALLOWED!), (NO BOYS ALLOWED!), and (PAPYRUS ALLOWED.). The door to Sans's room has multicolored flames under it which do not hurt the protagonist if stepped on.

    Papyrus's room: Papyrus's room is where the protagonist befriends Papyrus.

    His room contains a racecar bed, action figures, pirate flag, a bookshelf with complex tomes about puzzle creation and children's books, a computer opened up to a social media website, a box of bones, and a closet with clothes neatly hung up inside.

    Sans's room: "WHY WERE YOU USING A TREADMILL IN THE DARK? IS SANS PRANKING YOU ACROSS TIME AND SPACE? I HATE IT WHEN HE DOES THAT! HOW IMMATURE CAN YOU GET?"

    • Papyrus when he finds the protagonist in Sans's room

    Sans's room is unlocked in a no EXP earned Neutral Route by listening to Sans in the Last Corridor explain EXP and LOVE and then reloading the SAVE file. This can also be accomplished by having already completed the Neutral Route once and then returning to the area in a second Neutral Route. After either method, Sans notices the protagonist has already heard his spiel and exchanges one codeword, and then another, which is revealed by reloading again. Sans then gives the protagonist the key to his room, which mysteriously appears on the protagonist's keychain.

    When the protagonist first enters the room, they walk into what is seemingly an empty void. After a bit of walking, Papyrus turns on the lights to the room and tells the protagonist that they were using a treadmill in the dark.

    Sans's room is messy, containing a self-sustaining tornado of trash, an unused treadmill with a note that reads "the truth is that you got owned, nerd....." It also contains a dirty sock pile, a worn mattress with sheets bundled up in a weird creasy ball, an uncovered pillow, a "thank you" letter addressed to Santa, a lamp with a flashlight that is out of batteries stuck in the bulb socket, and a drawer with a Silver Key, clothes, and trombones inside of it. Rarely, the Annoying Dog appears in the self-sustaining tornado of trash.

    Papyrus's toolshed: "HELLO. THAT'S NOT MY HOUSE. THAT'S JUST MY COOL TOOLSHED."

    • Papyrus discussing his shed

    Papyrus's toolshed, also known as the capture zone, the doghouse, the guest room, the coolshed, or Papyrus and Sans's garage, is a small shed located to the right of Papyrus and Sans's house. The protagonist wakes up here after losing to and being captured by Papyrus. The contents in the shed slightly change the first two times the protagonist loses to Papyrus.

    The shed starts out with a bowl of dry food, a squeaky chew toy, and a bed that is too small to sleep on. There is a note that reads "SORRY, I HAVE TO LOCK YOU IN THE GUEST ROOM UNTIL UNDYNE ARRIVES. FEEL FREE TO MAKE YOURSELF AT HOME!!! REFRESHMENTS AND ACCOMMODATIONS HAVE BEEN PROVIDED. -NYEHFULLY YOURS, PAPYRUS." The bars of the shed are built too far apart, just like the ones on the bridge in Snowdin, so the protagonist can easily escape from it.

    The second time the protagonist loses, there is a hot dog cut up into the bowl of kibble, and the note has been changed, now reading: "PLEASE ASK BEFORE YOU ESCAPE!!! WHEN YOU WENT MISSING I GOT WORRIED SICK!!! -SLIGHTLY BONETROUSLED, PAPYRUS." The third time the protagonist loses, Papyrus's note just says: "IF YOU'RE JUST LOOKING FOR A PLACE TO STAY... JUST ASK!!! YOU DON'T NEED TO FIGHT ME!!! -YOUR HOST, PAPYRUS." The word "Bonetrousled" in the second note references the title of the track that plays while fighting Papyrus, Bonetrousle.

    After three losses to Papyrus, the next time the protagonist meets him, he gives them the option of skipping the fight, saying that he is getting exhausted from capturing the protagonist. Accepting his offer leads to the same post-fight dialogue as if the protagonist had fought and spared him normally.

    If the protagonist attempts to access the shed after befriending Undyne, Papyrus informs the protagonist that it is his "COOL TOOLSHED". Undyne then exclaims "Do you call it your COOLSHED!?" Papyrus admits that he has never thought of that, and adds "THAT'S WHY WE'RE FRIENDS, UNDYNE. YOU ENRICH MY LIFE WITH SHED-BASED PUNS." Undyne comments that this is the only shed-based pun that she has ever made.

    Sans's workshop: Sans's workshop is located in the house's basement. It can be found behind the house and can only be opened with the Silver Key found in Sans's room.

    At the bottom-right corner of the room, there is a strange, covered-up machine that seems to be broken. The workshop has four drawers, but the protagonist cannot interact with the rightmost two; in an attempt to do so, they interact with the blueprints on the shelf just above the drawers. The blueprints are described as being of a machine and written in unreadable symbols (which may be the Wingdings associated with W.D. Gaster, or Alphys's handwriting). The second drawer from the left contains a badge. The first drawer's contents change depending on some of the player's previous actions; it always contains a photo album with photos of a happy Sans along with many other people the protagonist does not recognize. After Asriel's battle, another photo shows up with the protagonist, Sans, and all of the protagonist's friends. Finally, only after talking with the Clam Girl and learning of Suzy, a card sticking out from the back flap of the binder appears, described as a poorly drawn picture of three smiling people with the words "don't forget" written in lowercase.

    Trivia:

    • The garbage bag inside the trash can is named "Trashy".
33. #33Grillby's

    Keys: Grillby's

    Enabled · After character · Order 2000

    Entry settings

    Grillby's is a pub located in Snowdin. It is named after and run by Grillby, a monster made entirely of fire.

    Features: Many different monsters, such as the Snowdin Canine Unit, can be found relaxing, playing cards, and talking. A hangout with Sans occurs here, and during the hangout, it is revealed that he is a well-known regular, even having a tab.

    Located in: Snowdin Inhabitants: Grillby, Doggo, Lesser Dog, Dogamy and Dogaressa, Greater Dog, Crazy Bun, Big Mouth, Punk Hamster, Ugly Fish, Red Bird

    Geography: Grillby's is one of the many buildings in Snowdin, located to the left of the Snowdin Library and Papyrus and Sans's house. It contains a couple of booths, tables, a bar, and a broken jukebox. A variety of NPCs is present, including the Snowdin Canine Unit, if the protagonist spares them before reaching Snowdin.

    Trivia:

    • Papyrus states that Sans usually eats out every night, and only recently began attempting to cook. It can be assumed that Grillby's would be the "out to eat" that Papyrus was mentioning. There is a "fire exit" to the left of the bar, which cannot be used because the protagonist is "not made of fire". This restriction implies that the exit was made for the owner, Grillby, only. This joke is a play on real life fire exits.
34. #34it's quiet...

    Keys: Waterfall

    Enabled · After character · Order 2100

    Entry settings

    Waterfall is the third area the protagonist encounters in the underground. The area is accessible after the protagonist defeats Papyrus in a fight. The area follows Snowdin and precedes Hotland.

    Features:

    • Napstablook, Undyne, and Mettaton have houses in Waterfall.
    • The ancient glyphs on the walls describe The War of Humans and Monsters as well as the prophecy surrounding the Delta Rune.
    • The protagonist encounters Mad Dummy and Monster Kid.
    • Undyne attacks the protagonist on several occasions and is the last monster the protagonist battles in Waterfall.
    • The protagonist finds the Old Tutu and Ballet Shoes behind a waterfall and in tall grass, respectively. Gerson sells the Cloudy Glasses and Torn Notebook.
    • Temmie Village is hidden within Waterfall, in the "room before the darkening lantern room", as stated by the River Person.
    • A memory from the fallen human plays after the protagonist falls into the garbage dump.

    Inhabitants: Undyne, Napstablook, Mettaton (formerly), Echo Flower Explainer, Aaron, Ferry, Woshua, Loren, Moldsmal, Moldbygg, Shyren, Temmie, Bob, Mad Dummy, Gerson, Mouse, Small bird, Onionsan, Elder Puzzler, Clam Girl, Mystery man, Goner Kid Locations: Artifact room, Garbage dump, Undyne's house, Blook Acres, Temmie Village

    Geography: Waterfall is a damp, cavernous region that sees constant rainfall. Many bodies of water flow throughout the region, and, true to its name, the region is characterized by its numerous waterfalls flowing from the ceiling and from the lakes and rivers. The color of this water ranges from white to various shades of blue.

    Pink and blue gemstones are embedded in Waterfall's indigo floors and walls. Sometimes, gemstones can be seen in the ceiling and act as stars in the night sky. Waterfall's pathways are often winding and contain many branches.

    Many different forms of plant-life grow in Waterfall, including the numerous Echo Flowers scattered throughout the region and seagrass that obscures the protagonist as they walk in. Additionally, bright blue mushrooms appear in some areas, which light up when touched.

    Ancient glyphs adorn the walls throughout Waterfall. These glyphs detail the war that resulted in monsters being sealed underground as well as a prophecy surrounding the Delta Rune.

    Sublocations: Entrance: The initial walkway in Waterfall is short and linear, with waterfalls scattered throughout the foreground. The river just above the walkway eventually veers upwards and off-screen.

    Checkpoint: In the Checkpoint, the protagonist speaks to Monster Kid, Sans, and the Echo Flower Explainer. A small waterfall flows through this room, and an Echo Flower and Sans's sentry station are against the north wall. Between Sans's sentry station and the Echo Flower is a SAVE Point. Snow covers Sans's sentry station and his station blocks access to a wooden door. From this room, the protagonist can choose to go with Sans to Grillby's via a shortcut through the right wall.

    Rock puzzle: After progressing right, the protagonist encounters a puzzle that involves dodging rocks that are going down the waterfall as well as a Dimensional Box. If a rock pushes the protagonist over the edge of the waterfall, they land on a wooden bridge that has an Echo Flower on the rightmost end. One of Alphys's cameras is situated behind this waterfall. Backtracking to the left allows the protagonist to attempt to cross the waterfall again or access the hidden room behind the waterfall. The Old Tutu resides in this hidden room.

    Hallway: Exiting the waterfall room leads to the Hallway, a room with a patch of tall grass in which a cutscene of Papyrus and Undyne takes place. Papyrus stands on the lighter side of the room while Undyne stands in the shadows. Undyne nearly attacks the protagonist but stops when she remembers that the sea-grass is used for scientific study.

    A few pink gems and blue gems are in this room, along with three stalagmites near Undyne. After the protagonist exits the tall grass on the right, Monster Kid appears from the grass and celebrates seeing Undyne.

    Bridge Seed puzzles: Progressing right, the protagonist encounters Bridge Seed puzzles. The first room serves as a tutorial of Bridge Seed mechanics, and the protagonist crosses the waterfall in the room after lining up four Bridge Seeds. Using the right exit of the room, the protagonist enters a larger room with another Bridge Seed puzzle within it.

    After taking a few steps forward, the protagonist encounters Aaron. This encounter is scripted.

    Along with four Bridge Seeds, this room contains four glowing mushrooms, a sign in the middle of a waterlogged area, a Bell Blossom that retrieves the seeds, and a sign describing the Bell Blossom. The sign in the bottom left of this room reads "Congratulations! You failed the puzzle!" The protagonist can solve the Bridge Seed puzzle multiple ways.

    When the protagonist approaches the top left exit of the Bridge Seed room, Papyrus calls and inquires what the protagonist is wearing. They are given a choice of whether to tell him the truth or lie to him.

    Lone bench: The protagonist can use the Bridge Seeds to create a bridge offscreen to the right of the room. In this room, there is an Echo Flower and a bench with the Abandoned Quiche beneath it.

    Wishing Room: The next room is the Wishing Room, which contains many Echo Flowers and blue, glowing gems on the ceiling. As the protagonist progresses right, a telescope pointed at the ceiling offers a clue to check the northern wall to find the exit of the room.

    Raft dock: The northern exit leads to a room with a wooden bridge and dark water in which many Water Sausages grow. On the north wall are many ancient glyphs. At the end of the wooden dock, the protagonist steps on a small raft that drifts to the right.

    Boardwalks: Undyne's first spear barrage occurs in the next room. The protagonist flees from Undyne's spears along a wooden dock surrounded by black water. Undyne stands to the north of the protagonist and directly behind a row of rock pillars. The protagonist escapes Undyne by hiding in tall sea-grass.

    While being attacked by Undyne, her attacks begin to speed up the longer the protagonist stays in the room. The spears eventually reach a limit, indicated by a sound effect playing for each throw. Monster Kid's dialogue changes if the protagonist reaches this limit.

    After leaving this room and coming back, a ferry monster appears, and they can transport the protagonist back to the raft dock, giving the protagonist 3G in the process rather than charging 3G.

    Crystal: After leaving this room through the right exit, the protagonist reaches the "Crystal" room. In this room is an Echo Flower, a mouse hole, and a piece of cheese. The Echo Flower, which is to the right of the mouse hole, squeaks when the protagonist interacts with it. On the True Pacifist Route, the dialog of the table changes.

    Fake hallway: If the fun value is set to 66, a horizontal hallway appears between the "Crystal" room and the room with Sans next to the fake telescope. There is an additional 10% chance that a gray door will appear. The door leads to a gray room that contains the Mystery Man. The figure has no hitbox, but interacting with them makes them disappear. The hallway becomes inaccessible after leaving it.

    Telescope: Continuing right, the protagonist exits the room and sees Sans standing next to a telescope. To his right is another Dimensional Box. Sans attempts to prank the protagonist with the red-eye telescope. Exiting through the wooden door on the north wall of this room leads to another small room with the Nice Cream guy in it. There is also a Punch Card box, a blue, glowing mushroom, and defiled ancient glyphs in this room.

    If the protagonist backtracks from this room and travels right from Sans's telescope, they encounter Loren and, continuing right, the small bird. The protagonist cannot use the small bird yet, as they are on opposite sides of a chasm of bright blue water.

    Inspecting the southern wall immediately left of the southern path reveals that there are glowing gems along that wall, but they cannot be seen due to the angle at which the camera is positioned.

    Winding path Going south of where Loren is leads to a room that spans a large area horizontally and vertically. The color palette reverses in this room, and the water appears bright blue while the land appears black. As the protagonist traverses this room, they encounter a few Echo Flowers and can also find the Ballet Shoes in a tuft of tall grass.

    Before the protagonist crosses a wooden bridge, one of four possible dialogues can happen, depending on what they chose to tell Papyrus in the second Bridge Seed puzzle room. If they told him the truth, Papyrus calls them again and explains that he told Undyne exactly what the protagonist told him because he assumed the protagonist would change their clothes after being asked such a suspicious question. If they instead chose to lie, Papyrus gives one of two dialogues where he said he chose to lie about what they were wearing so they wouldn't get into trouble, accidentally telling Undyne what they actually are wearing. If the protagonist told him the truth, but they have changed their defensive item, Papyrus says that he made up what they were wearing, accidentally guessing what they changed into.

    Onionsan Continuing, the protagonist enters a long, horizontal room with a narrow black path leading to the right. If they are not on the Genocide Route, as they progress down this path, Onionsan appears and talks to them.

    Shyren The protagonist leaves through the right exit and encounters Shyren in the next room. Shyren's room has two small, white waterfalls that flow from the top to the bottom of the screen and always stay in the foreground. A pool of water is situated at the center of the room. Heading to the right, the protagonist encounters more ancient glyphs that inform them of Boss Monsters.

    Piano puzzle To the north of Shyren's room, the piano puzzle awaits the protagonist. The protagonist opens the door to the artifact room by playing the melody that echoes through the area.

    The artifact room itself contains a red orb on a pedestal and glyphs that cannot be read because the protagonist cannot stand directly in front of them.

    Statue Continuing to the right, the protagonist sees an ancient statue that has water dripping on it from the ceiling. If an umbrella from the next room is placed over the statue, a music box can be heard playing Memory.

    Neither Papyrus nor Undyne know of the statue's origin, and they explain so when calling them.

    Rain rooms Exiting this room through the right exit leads the protagonist to a room with a white waterfall in the foreground, a bucket of umbrellas, and a sign encouraging them to take an umbrella. Progressing right, they walk through a waterlogged room that has many waterfalls and reflective pools within it. Monster Kid walks alongside the protagonist for the duration of this room.

    New Home view After the duo reaches the end of the rain rooms, they enter a two-dimensional room with New Home off in the distance. The game returns to an overworld scheme after the protagonist exits this room to the right.

    After Monster Kid helps the protagonist climb onto a ledge, the protagonist progresses to the next room without them after Monster Kid gives them the go-ahead.

    Bridge The next SAVE Point is in the room immediately to the right of the ledge, known as the Bridge. There are also more ancient glyphs on the walls that detail The War of Humans and Monsters. Exiting this room to the right, the protagonist walks on another wooden bridge where Undyne antagonizes them. After reaching a dead end of the bridge, the protagonist falls into the garbage dump after Undyne slices the bridge in two.

    As in the docks, Undyne's attacks speed up the longer the protagonist stays on the bridge.

    Garbage dump landing After a brief flashback of Asriel encountering the fallen human, the protagonist wakes up on a bed of golden flowers, finding themselves in the garbage dump. Most of the garbage dump is flooded, and the protagonist walks with their legs below the water.

    The initial room is very large and spacious. The waterfall that flows into this room spans across the entire northern wall, and there are two piles of garbage along the southern wall.

    Trash Zone East of the landing area is the Trash Zone, which is a smaller room with a waterfall that flows into the room and a waterfall that flows into the abyss below. According to the SAVE Point, pieces of garbage occasionally flow through the room and fall into the abyss, but this does not occur in game. It is revealed later that this is the room where Undyne first met Alphys.

    Trash walkway East of the Trash Zone is a vertical room that veers upwards. More piles of garbage litter the walkway as well as a cooler with two packs of Astronaut Food. Mad Dummy is situated at the end of the walkway, and the protagonist is given the option to beat it up when inspected. Mad Dummy wakes up and engages the protagonist in battle, which is interrupted by Napstablook. Napstablook then invites the protagonist to their house.

    Quiet Area Napstablook leads the protagonist to the Quiet Area, which is a rectangular room with a pond in the center. A SAVE Point is situated below the pond. If the Fun Value is between 80 and 89, Clam Girl stands at the bottom-right of the room. A sign is situated near the northeastern exit, indicating the directions of the nearby rooms.

    To the west of the Quiet Area lies the small bird that can carry the protagonist over a disproportionately small gap to the earlier areas of Waterfall. The bird does not appear in the Genocide Route, meaning that the protagonist cannot get back to earlier areas.

    Blook Acres North of the Quiet Area leads to Blook Acres, which is separated by three paths: the left path leads to Undyne's house, the middle path leads to Napstablook's house, and the right path leads to the snail farm. Mettaton's house lies next door to Napstablook's house, and it can eventually be unlocked by using the Mystery Key. In the snail farm, Napstablook invites the protagonist to play a game of Thundersnail for the price of 10G.

    Gerson shop entrance To the east lies a crossroads with Gerson's shop to the north and a southern path that leads to a room where the River Person is present once the protagonist reaches Hotland. A Dimensional Box is present next to the entrance to Gerson's shop.

    Twin waterfalls Continuing east leads to a horizontal room with two bodies of water that the protagonist sinks their legs under. This is the first room where Temmie and Moldbygg can be encountered. There are Echo Flowers in this room,[26] but they are inaccessible to the protagonist.

    Mushroom maze Continuing forward, the protagonist enters a maze of paths that light up when they touch the glowing mushrooms. There is a southern path that is hidden from view that leads to Temmie Village but lights up once the protagonist leaves the village or all four mushrooms are lit.

    Temmie Village Temmie Village is a hidden settlement inhabited by Temmies. It houses a SAVE Point, a Dimensional Box, and the Tem Shop, to which the protagonist can sell their items.

    On the Genocide Route, every Temmie has left Temmie Village except for the Temmie Shopkeeper and the Temmie that looks out from the wall.

    Crystal maze East of the mushroom maze is another maze, but this time, there are darkening lanterns that must be turned back on to temporarily light the way forward. In place of the light, purple crystals are scattered throughout the room and emit light, but they ultimately do not provide any usable light.

    Dead end After solving the two puzzles, the protagonist enters a horizontal room that gets progressively darker as they continue forward. Interacting with the Echo Flower at the end of the room causes the room to light up only for Undyne to appear and approach the protagonist with the intention of taking their SOUL. Monster Kid suddenly jumps out from a patch of tall grass and interrupts the ensuing battle.

    Echo Flower path After Undyne drags Monster Kid away, a path that was previously hidden from view lights up, allowing the protagonist to continue north into a vertical room with a few Echo Flowers along the path. There is an ancient glyph at the end of this room that mentions a prophecy of an Angel returning from the surface and causing the underground to go empty.

    Reaching the end of the room and backtracking without leaving the room allows for Flowey to be seen going back into the ground next to an Echo Flower. If the protagonist then interacts with the Echo Flower, Flowey can be heard disguising himself with Toriel's voice, with the dialogue varying depending on whether she was killed or not. On the Genocide Route, the Echo Flower still says that "It's strangely silent", except the text is in Toriel's voice.

    Chasm The protagonist then enters a room that contains a bridge spanning across an expansive chasm. Monster Kid approaches the protagonist and talks to them. However, once they start to leave, they trip off the bridge and hang onto the ledge below just as Undyne enters the room. The protagonist has the option to save Monster Kid, confront Undyne, let Monster Kid fall off the ledge, or run away into the next room where the Elder Puzzler eventually inhabits.

    Undyne Arena In the "Undyne Arena", Undyne stands atop a tall crag and speaks to the protagonist, with her dialogue changing based on if they killed monsters or if they killed Papyrus. She eventually allows the protagonist to prepare themselves however they want, initiating the battle once they step forward. If the protagonist opts to flee from her, Undyne begins chasing them throughout the last two rooms of Waterfall before Hotland, reengaging battle if she catches up with them.

    River Going under the crag that Undyne originally stood on leads to a vertical room that acts as a bridge over a river. The ice thrown by Ice Wolf flows along this river.

    Neon sign The next room is a horizontal room with a neon sign saying "WELCOME TO HOTLAND!" with the letters scrolling across the sign. If Undyne is killed, the neon sign is turned off. Papyrus calls the protagonist in the neon sign room telling them that they should hang out together with Undyne sometime. If Undyne is chasing the protagonist, she stops so that they can accept the call.

35. #35Undyne's House

    Keys: Undyne's House

    Enabled · After character · Order 2200

    Entry settings

    "Huff... puff...! YEAH!!! That's MY HOUSE!!!"

    • Undyne, upon calling Papyrus immediately after befriending her

    Undyne's house is the home of Undyne that appears in the Waterfall area. It is a key location in the True Pacifist Route.

    Undyne's house is situated next to Napstablook's, which Undyne notes when calling here in front of it.

    Features:

    • The hangout with Undyne occurs here if the protagonist gained no EXP. After the hangout, the house is no longer accessible.
    • If Undyne is befriended after completing the Neutral Route and backtracking (or after resetting and defeating Mettaton), Undyne's Letter can be obtained here instead of in Snowdin.

    Sublocations: Exterior: Undyne's house appears to be a massive angry fish with the door resembling the mouth and the windows resembling the eyes. After completing the events that occur in this area, the house turns entirely black, and fire can be seen from the house's windows and slightly open door. The "eyes" also change from angry to teary. Mad Dummy appears here after their battle, unless killed during the Genocide Route. At the end of the True Pacifist Route, Mad Mew Mew replaces Mad Dummy on the Nintendo Switch version of Undertale if she was fought.

    Knocking on the door of the house at certain points in the game can result in varied dialogue:

    Knocking on the door after fighting Undyne but not giving her water: "You hear irritated groans from the inside." Knocking on the door after fighting Undyne and giving her water but before hanging out with Papyrus: "It doesn't seem like anyone is home." Knocking on the door after killing Undyne: "It doesn't seem like anyone is home. And you get the feeling no one will be." Knocking on the door while the house is burning after befriending Undyne: "Sounds like only fire lives here now." Knocking on the door if Papyrus is in front of it: "If someone's there, they aren't answering the door." If all conditions to start the hangout are met, the door cannot be knocked.

    Interior: The interior of the house consists of a kitchen with a table, a chair, a fridge that keeps food warm, a sword, a piano, and a window on the left side of the house. The only other door in this room that is not the entrance is the locked door that leads to Undyne's room.

36. #36Garbage Dump

    Keys: Garbage Dump, Garbage dump

    Enabled · After character · Order 2300

    Entry settings

    "This is where Undyne and I come all the time... We find all sorts of great stuff here."

    • Alphys, True Pacifist Route

    The garbage dump is a region at the low point of Waterfall, where garbage from both the underground and the surface accumulates.

    Features: Mad Dummy (Glad Dummy on the Genocide Route) is fought in this area. On the True Pacifist Route, the date with Alphys occurs in this area. The following garbage can be found in the area: A rusted bike A beat up desktop computer A cooler containing Astronaut Food A DVD case for an anime with claw marks Yellow Names, if the protagonist turned off Yellow Text for indicating when monsters can be SPARED earlier in the Ruins room with up to three Froggits.

    Geography: The garbage dump is an area at the base of a waterfall which is covered in garbage. Similar to the rest of Waterfall, it is characterized by dark blue water and purple walls, but uniquely includes colorful garbage piles. There also is a single bed of golden flowers.

    Trivia: The garbage dump is the location where Undyne met Alphys for the first time, where Alphys was staring into the abyss where the garbage flowed. It was a surprise encounter for them, and both considered it a good place of interest that way. Considering the DVD present in this location is of an anime and has scratch marks engraved on it, it is likely the cover was owned by Alphys. It is unknown what led to its current state, however. Bratty and Catty get their wares from the garbage dump.

37. #37Temmie Village

    Keys: Temmie Village

    Enabled · After character · Order 2400

    Entry settings

    Temmie Village is a small, elusive region within Waterfall that is comprised of two rooms.

    Features: The village is home to many Temmies, notable for their quirkiness and broken English. The Tem Shop can be found here, which is the only shop in the game that allows the protagonist to sell items.

    Located in: Waterfall Inhabitants: Temmies, Bob, Ragel Locations: Tem Shop

    Temmie Village is said to have a very deep history though it is never explained. If the Temmie Shopkeeper is sent to college, she says that she can elaborate on their history, but only that.

    Geography: Temmie Village has the same overall visual theme as the rest of Waterfall: a dark cavern with purple tones. It has a cheery musical theme, and several Temmies, Bob, and Ragel the mushroom populate it. The village also has a statue of "Tem", and a vendor inside of the Tem Shop.

    Trivia: The SAVE Point says "detemmienation" instead of "determination". Detemmienation can also be broken in to 3 words: "De" , "temmie", "nation" (The Temmie's nation), which is likely talking about the village. Bob seems to be the only Temmie in Temmie Village to consistently talk in proper English, rather than broken-up like the rest of them.

38. #38Blook Acres

    Keys: Blook Acres

    Enabled · After character · Order 2500

    Entry settings

    Blook Acres is the area found north of the "Quiet Area" SAVE Point intersection in Waterfall. This area contains Undyne's house, Napstablook's house, Mettaton's house, and the snail farm where the protagonist can play a game of Thundersnail.

    Features: Blook Acres is separated by three paths: The left path leads to Undyne's house. The middle path leads to Napstablook and Mettaton's houses. The right path leads to the Blook Family snail farm.

    Inhabitants: Mad Dummy, Undyne, Napstablook, Snail, Sam Byool, Snail Guy, Slug, Racing snails, Mettaton (previously)

    Sublocations: Undyne's house The home of Undyne, which can be entered if the protagonist has no EXP and had her offered a glass of water in Hotland. The exterior of the house resembles Undyne as an angered fish, with two fishbone mats. Outside is the Mad Dummy, and if spared, Papyrus after fighting Undyne. Talking to Papyrus triggers the date with Undyne. After cooking with Undyne, the house catches on fire permanently and becomes inaccessible. Undyne then relocates to live at Papyrus and Sans's house in Snowdin, where she joins Papyrus in his Cell Phone calls to the protagonist for the remainder of Undertale.

    Napstablook's house The home of Napstablook, accessible to the protagonist after Mad Dummy's battle. Inside, along with Napstablook, is a fridge, a television, a spiderweb with a flyer for a Spider Bake Sale, a computer open to a music-sharing forum, and three CDs, labeled "Ghouliday", "Spookwave", and "Spooktune". These songs continue to play after the protagonist leaves Napstablook's house. If the protagonist walks in the quiet area while one of these songs plays, a unique encounter with Aaron and Woshua triggers.

    Mettaton's house The house next to Napstablook's house, which is unlocked using the Mystery Key. This key can be bought from Bratty and Catty for 600G. Inside is an entirely pink interior, with pink and star accessories. There is a pillow on top of a bed, a carpet, a poster, a single window, and a television, which are all inaccessible to the protagonist. There are six diaries on the floor, which detail the story of Napstablook's neighbor, a ghost who wanted to perform and become corporeal. This SOUL was then put into the robot body created by Alphys, which became Mettaton.

    Snail farm The Blook family business is run by Napstablook. According to them, the place used to have a large amount of business, until their primary customer (assumed to be Toriel) stopped coming. Currently, their only customer is "some hairy guy that shows up once a month"; this customer is assumed to be Asgore, who keeps canned snails in his fridge. The first pen has four snails that the protagonist can interact with, while the second pen, where the protagonist can play a game of Thundersnail, has three racing snails.

39. #39Hotland

    Keys: Hotland

    Enabled · After character · Order 2600

    Entry settings

    "LASERS ON CONVEYORS? NO THANKS. SOUNDS LIKE MY LEAST FAVORITE NIGHTMARE."

    • Papyrus, if the protagonist calls in Hotland

    Hotland is the fourth region the protagonist encounters in Undertale, following Waterfall. It contains locations such as Alphys's Lab, True Lab, the MTT Resort, and the CORE.

    Features: Alphys's Lab, where she lives, is near the entrance of Hotland. This also holds the entrance to the True Lab. Mettaton hosts four game shows/performances during the protagonist's travel through Hotland. On floor R2, Sans sells Hot Dogs to the protagonist for 30G each. He does not appear once he appears in the Last Corridor or if Papyrus is killed. The protagonist can find the Art Club room on floor 2. So Sorry's fight occurs here. The protagonist can find the Burnt Pan and Stained Apron on floors 1 and 2, respectively. Bratty and Catty sell the Empty Gun and Cowboy Hat. Muffet fights the protagonist before they reach the MTT Resort. She does not fight the protagonist if they bought an item from the Spider Bake Sale on floor L3 in Hotland. Muffet can immediately be made spareable if the protagonist brought an item from the bake sale in the Ruins, which costs considerably less. The MTT Resort is a Mettaton-branded hotel which holds the entrance to the CORE.

    Inhabitants: Alphys, Mettaton, Clam Guy, Vulkin, Tsunderplane, Pyrope, Fuku Fire, Skateboard Girl, Business Dude, Fire Coffee, Disembodied fox head, Royal Guards, Muffet, Scared donut guy, Diamond Boy, Tall Diamond Boy, So Sorry, Heats Flamesman, Hot Dog Harpy, Mouse, Gaster followers, Dress Lion Locations: Lab, Spider Bake Sale, Art Club room, MTT Resort, CORE, True Lab

    Geography: Hotland is an arid region covered in reddish-orange dirt rising above the lava below. Many of the puzzles in the area involve platforms, adding to the hot atmosphere, as well as foreshadowing the technology found in the CORE.

    Hotland appears to be a very industrial area of the underground. Aside from being home to the CORE and Alphys's lab, Hotland also contains many steam vents, conveyor belts, lasers, elevators, and doors opened by solving puzzles. In some rooms, gears and cogs can be seen on the walls.

    Hotland and the CORE are counted as a single region, which means that they share a kill counter.

    Sublocations: Floor 1 Here, the protagonist enters the Lab for the first time, and is introduced to the River Person. Monsters such as Vulkin, Tsunderplane, and Pyrope are first encountered on this floor, but only after exiting through the right side of the Lab. This area mainly serves to introduce the protagonist to the steam puzzles and conveyor belts that are abundant through Hotland.

    Sans's sentry station: This room has a sentry station followed by a wooden bridge that continues into room 2. If the protagonist flees from Undyne and Papyrus is spared, Sans is seen sleeping in the sentry station. When Undyne gets to the sentry station, she pauses for a moment, sporting an angry expression, buying the protagonist time to outpace her. If Undyne is killed, Sans does not appear in the sentry station regardless of whether Papyrus was spared or killed.

    Water cooler: Here, the protagonist can find a small room with a water cooler. When checked, the water cooler gives the protagonist a cup of water. Dumping out the water causes a small puddle to appear next to the water cooler, which gradually gets larger the more water that is spilled into it. Attempting to leave the room with the water causes it to evaporate, and the cup humorously evaporates as well. After leaving the room and going back in quick succession, the water cup gets erased by a mysterious force. If all of the water is poured out of the water cooler, there is a small tree growing in the puddle at the end of the True Pacifist Route.

    If the protagonist spares Undyne by running away from her, she collapses when the protagonist reaches this room. If the protagonist splashes water on her, she gets up and walks back to Waterfall. If the protagonist pours out all the water in the water cooler while Undyne is passed out, then checks the now-empty water cooler, the check says "Sadistically, you've poured out all the water right in front of Undyne's eyes."

    The second time the protagonist enters this room, the Clam Guy appears. They tell the protagonist that they came to Hotland to get a drink from the water cooler. If approached with a cup of water, they ask if the protagonist plans to look sophisticated by carrying the water around, and then informs them it is not working.

    Laboratory Entrance: This area is a four-way crossroads that the protagonist enters from the west. The north path is initially blocked by the Royal Guards, who claim to be blocking the way for Undyne. After fighting the protagonist on floor 2, the path becomes unblocked. The south path leads to the River Person, who offers to ferry the protagonist back to Snowdin or Waterfall. The east path leads to the Lab. In the middle of all four paths, a SAVE Point is visible.

    On the Genocide Route, instead of the Royal Guards blocking the path to elevator L1, a force field is present. This force field is deactivated once the protagonist reaches elevator R3.

    Lab: The Lab is a two-floor building, with a hidden elevator on the first floor. It is where the protagonist meets Alphys and Mettaton. The latter subjects the protagonist to a Quiz Show.

    Post battle, Mettaton leaves. As the protagonist leaves, Alphys offers to upgrade the protagonist's dated Cell Phone. Once Alphys departs into the "bathroom", the protagonist can explore the entirety of the Lab with the lights on. An Instant Noodles can also be found in Alphys's refrigerator.

    After defeating Mettaton EX, the doors to the lab become locked, making the rest of floor 1 inaccessible. On the True Pacifist Route, the Lab can be entered after completing the garbage dump date with Alphys.

    Conveyor belts: After exiting the right side of the lab, Alphys realizes she did not watch the protagonist's encounter versus Undyne. The protagonist's phone gets frequent updates of Alphys's UnderNet statuses as they navigate the region.

    Going up takes the protagonist to a long, vertical room consisting of two sets of conveyor belts going forward and backward. The first set is straight, but the next set contains several bends and curves. Shots of flame burst from nearby pipes, adding to the scenery. In between the two sets, a Vulkin NPC appears after receiving Undyne's Letter.

    Magma Chamber: At the end, a SAVE Point can be found at the Magma Chamber, which is the first set of steam vents. It consists of several small islands, most with steam vents, and is surrounded by lava.

    Stepping on these vents causes it to emit a large steam that pushes the protagonist towards the depicted arrow's direction. On the branching isle, the protagonist can choose to take the west vent to progress, or east to go south and to the Burnt Pan room. Progressing towards the north path causes Alphys to express her anxiety on UnderNet, and she eventually calls the protagonist.

    Conveyor belt offshoot: Upon taking the southern path, the room has a steam vent that rapidly changes from left to right. Next to it are two islands with conveyor belts. The left island contains the Burnt Pan, while the right island contains nothing. The protagonist must get on the steam vent immediately after it switches to the left to get the pan.

    Regardless of what island the protagonist lands on, conveyor belts on each side of the island take the protagonist back to the steam vent.

    After receiving Undyne's Letter, A Pyrope NPC appears on the right island.

    Laser walkway: Upon entering the north path past the steam vents, the protagonist comes to another path that veers to the right. Soon after stepping into the room, Alphys calls the protagonist, and informs them of the orange and blue lasers nearby. She reports that they must be moving to avoid being hit by the orange lasers, and stay still to get past the blue lasers (similar to the orange and blue attacks). Afterward, she hangs up. In the path, several rows of orange and blue lasers, which the protagonist must evade to make it safely through the path. At the end of the laser field, the path veers upward into the next room.

    Puzzle hub: In this room, the protagonist comes across the reactivated door puzzle. On the left and right, the protagonist must solve two puzzles to move forward. To reach these puzzles, the protagonist must step on a steam vent that rotates clockwise between the north, south, east, and west. Upon entering the room, Alphys informs the protagonist that the right path is easier, and they should try that puzzle first.

    Right puzzle: On the right path, Business Dude and Fire Coffee are found sitting on the ground.

    Business Dude tells the protagonist that they managed to catch Mettaton's show on their phone, and remarks about how realistic the human looked. Fire Coffee talks about the size of Mettaton's fan club. Inside the puzzle room, the disembodied fox head explains that their co-workers refuse to help them solve the puzzle, and questions if they even want to go to work today. After completing the puzzle, they remark surprise when checked, and conclude that the protagonist must be a "total nerd" to solve the puzzle.

    Left puzzle: The left puzzle is blocked by a blue laser, which impedes the protagonist's progress. Soon after entering the room, Alphys calls the protagonist, and turns off the blue laser, allowing further progress. Like the right puzzle, two NPCs wait outside the door, named Fuku Fire and Skateboard Girl. Fuku Fire exclaims relief about the laser going down, then questions what she will do. After thinking, she decides to continue standing where they are. Skateboard Girl is happy about the laser blocking them from leaving, as it gives them an excuse to skip school, but realizes that it was already summer vacation and expresses displeasure over school.

    After solving both puzzles, a door to the north opens, letting the protagonist proceed.

    Vent islands: After solving the Reactivated Door Puzzle and leaving room 6 through the now-open doorway, the protagonist is greeted with a small pathway, and a steam vent pointing to the left. In this room, Alphys calls the protagonist again and begins to explain the Reactivated Door Puzzles. Once she realizes that the protagonist has already completed the puzzles, however, she becomes embarrassed and quickly hangs up. On the Genocide Route, the Royal Guards are present and initiate a battle against the protagonist.

    Walking on the steam vent projects the protagonist through three other steam vents, which eventually lead the protagonist to a lime-shaded floor with several large dots. The protagonist is unable to turn back once they reach this area.

    Mettaton's cooking show: Upon going to the right, the protagonist enters Mettaton's cooking show set. The set consists of a wall fragment, against which are a fridge, a countertop, a microwave, and an oven. An artificial window is situated above the countertop, and sugar, milk, and eggs sit on top of the counter. Another countertop sits at the front edge of the set, which consist of a sink and a cutting board. Off to the side to the right is a small countertop, which has a can glued on top.

    Here, the protagonist must face Mettaton again in his Cooking Show. Afterward, the protagonist may continue to the right.

    Core View: The Core View consists of a long walkway with a view of the CORE in the distance. Along the walkway, Alphys calls the protagonist and tells them not to worry. At the end of the passageway, an elevator is visible, which takes the protagonist to Floor 2.

    Floor 2: Here, the protagonist must solve more puzzles such as the conveyor belt puzzle and the vent puzzle. At the end of floor 2, the Royal Guards fight the protagonist as mini-bosses. Sans also sells Hot Dogs near the beginning of this floor, provided that Papyrus has not been killed, or he has not yet appeared in the Last Corridor.

    On the Genocide Route, this floor is entirely blocked off by force fields. Because of this, the protagonist cannot acquire the Stained Apron or fight So Sorry.

    Elevator exit: After exiting the elevator, Heats Flamesman and a path leading off to the left are visible. Heats Flamesman tells the protagonist their name when talked to, then asks them to remember it.

    Sans's hot dog stand: The left path leads to Sans, who is selling Hot Dogs for 30G each. No monsters may be battled in this room. Nearby are two NPCs, both with Hot Dogs of their own. One of them, called Hot Dog Harpy, remarks on the snow atop Sans's Hot Dog stand, then decides he must be too lazy to clean it. The other NPC, a Vulkin with a Hot Dog, exclaims "Toasty Bun!" when talked to. If Papyrus is killed, these NPCs do not appear. Next to the Hot Dog stand, a path leads west, which takes the protagonist to the next section of Hotland.

    Walkway: This room has three visible passages, along with one secret passage directly north of the southern path. The path east leads the protagonist back to Sans's Hot Dog stand. The south path leads to a room with the Stained Apron, an armor item that slowly heals the protagonist. The west path leads onward to the Conveyor Belt Puzzle.

    After receiving Undyne's Letter, A Tsunderplane NPC appears to the left of the invisible path.

    Art Club room: An invisible path to the north leads to the Art Club room. It can only be seen when the protagonist walks on it. Here, the protagonist may fight So Sorry if the game is launched while the player's clock is set to October 10th, at 8:00 PM (all day on the Nintendo Switch version).

    Conveyor belt puzzle: Here, the protagonist must solve the Conveyor Belt Puzzle to move forward. Upon entering the room, Alphys calls the protagonist to explain the puzzle to them. Upon completing the puzzle, a path to the left becomes accessible, allowing further progress. Here, the protagonist must solve The Vent Puzzle. Shortly after approaching the puzzle, Alphys yet again calls the protagonist, and tells them that she has to go to the bathroom. Afterward, she does not call the protagonist until after the Royal Guards have been defeated.

    Bad Opinion Zone: After completing the puzzles, the protagonist enters the "Bad Opinion Zone" (likely named due to Alphys's complaints on UnderNet about "Mew Mew Kissy Cutie 2"). Nearby is a SAVE Point, a mouse hole, and a safe atop a small table. Checking the table informs the protagonist that the cheese inside has been melted by the laser safe, causing it to become stuck to the table. On the True Pacifist Route, the dialog of the table changes

    Boys' night out: East of the Bad Opinion Zone is a room with a bend that veers to the left. Bordering the pathway are inaccessible island with pipes that constantly shoot steam. Here, the Royal Guards approach the protagonist and warn them of a human in a striped shirt roaming Hotland. After realizing the protagonist is said human, they attack. After the battle, the protagonist travels across the bend and receives more notifications from Alphys.

    Mettaton's news report: The protagonist comes across another dark room. After traveling a few steps to the right, the lights turn on to reveal a large room split into three connected segments. The protagonist appears on the middle segment, which initially consists of six bombs disguised as various objects. The bottom segment consists of three lasers colored blue, orange, and blue. A conveyor belt to the right leads to a vent, which transports the protagonist to the top segment, which contains a single large bomb.

    Here, the protagonist faces Mettaton's news report. Afterward, the protagonist may continue forward to a pathway that veers upward.

    CORE view: This room consists of a walkway that veers to the left. Another view of the CORE can be seen in the distance. Along this walkway, Alphys calls the protagonist and tells them not to worry about meeting Asgore. The protagonist continues to an elevator leading to floor 3.

    Floor 3: This is the last stretch of Hotland before the protagonist reaches the MTT Resort. Here, the protagonist must face another reactivated door puzzle and Mettaton's Multicolor Tile Puzzle. The protagonist must also fight Muffet here.

    Spider Bake Sale: After leaving the elevator, a path to the east leads the protagonist to Muffet's Spider Bake Sale. Here, the protagonist can buy a Spider Donut and Spider Cider for 9999G each. Besides the bake sale, the scared donut guy lies in this room, holding a Spider Donut. When talked to, he claims he did not want to buy a donut, but Muffet scared him into buying it and spending all of his money.

    Puzzle hub: Going forward takes the protagonist to the second Reactivated Door Puzzle. After beating this puzzle, a door to the far right opens up, allowing passage.

    The room consists of many square islands with directional vents on top. The protagonist must reach the puzzle by navigating the islands using the vents.

    Northern puzzle: After solving the puzzle directly north, two doamond-headed NPCs, Diamond Boy and Tall Diamond Boy, appear. They talk about their favorite moments on Mettaton's show and provide hints that foreshadow the battle against Mettaton EX.

    Southern puzzle: The lower door puzzle is blocked by lasers, which the protagonist must dodge. After beating this puzzle, Alphys calls the protagonist, and ask if they want to watch anime with her. Saying yes causes Alphys to talk a great length about her favorite anime, "Mew Mew Kissy Cutie". Saying no simply causes Alphys to hang up. On the way back, a stray cactus can be seen to the north, which the protagonist stops to look at if interacted with despite being on a conveyor belt.

    Spider Entrance: After beating the Reactivated Door Puzzle, the protagonist reaches the Spider Entrance, which contains a SAVE Point and a doorway to Muffet's Lair. Strands of webs can be seen in the background.

    Muffet's lair: Muffet's lair consists of spider webs scattered throughout the floor. Walking across the webs slows the protagonist's movement. Spiders hang from the ceiling, retracting when the protagonist gets close. At the center of the room is a large stretch of spider webs, which progressively slows the protagonist's movement until the webs prevent them from moving entirely. when this happens, Muffet engages in battle against the protagonist intent on killing them for being too stingy with their money and not buying anything, but does not attack if they bought at least one of her 9999G items.

    Mettaton's musical: The path out of Muffet's Lair leads to a small stage, where Mettaton begins his musical performance. In this room, the game window on the PC versions of Undertale is renamed to "UNDERTALE the Musical". After the performance, Mettaton drops the protagonist down to the room containing the Multicolor Tile Puzzle. Mettaton fights the protagonist after the puzzle and is defeated using the laser attached to the protagonist's phone.

    Crossroads: After, the protagonist comes across a small room with a four-way crossroads. Nearby, the Nice Cream guy sells the protagonist Nice Cream for 12G each if the Royal Guards were killed, and is out of stock if they were spared, with all of the Nice Cream having been bought by them.

    The south and west paths lead back to the Multicolored Tile Puzzle and "Undertale the Musical", respectively. The east path leads to elevator R3, where Heats Flamesman waits. They ask the protagonist if they remembered their name. Regardless if the protagonist says no or yes, Heats Flamesman becomes shocked, and questions how they could be so easily defeated. The north path leads to the MTT Resort.

    MTT Resort: The MTT Resort is a hotel situated at the end of Hotland. At the entrance to the resort, the protagonist can meet up with Sans and buy items from Bratty and Catty. Inside, they can buy items from the MTT-Brand Burger Emporium and sleep at the hotel. The MTT Resort connects directly to the CORE.

    On the Genocide Route, Alphys has evacuated everyone except Burgerpants; he tells the protagonist that Mettaton always has him work, regardless of the situation.

    CORE: The CORE is a highly industrial facility that produces power for the entire underground. Inside the CORE is an elevator to New Home, which is blocked by Mettaton. Mettaton diverts from Alphys's plans and engages the protagonist in a final confrontation.

40. #40Lab

    Keys: Lab, Laboratory

    Enabled · After character · Order 2700

    Entry settings

    The Lab, or Laboratory, is the workplace and home of the Royal Scientist, Alphys. It is a building in Hotland, where Alphys conducts her studies, controls sections of Hotland's puzzles, and surveys the majority of the underground through hidden cameras. It also houses the True Lab.

    Features: A package of Instant Noodles can be obtained from Alphys's fridge. Alphys and Mettaton make their first appearances here, with the latter subjecting the protagonist to a quiz show. The True Lab, initially referred to as a "bathroom", is found here, containing Amalgamates, the results of Alphys's ill-fated experiments with determination.

    Geography: The Lab is a large white and red building with a pale green interior. There are two floors on the lab, the ground floor being Alphys's workplace, and the second floor being her room. Three conveyor belts are also in the Lab, with two leading to the other floor, and one on second floor that moves to the left.

    Sublocations: First floor On the ground floor, the dialogue for the Alphys's monitor and dog food varies varies depending on the protagonist's progress.

    For the monitor:

    When the lights are off, the dialogue becomes "It's you...?" When the lights are on, the dialogue explains the monitor's use. On the Genocide Route, the dialogue is, "It's me, Chara." For the bag of dog food, it is described differently based on if the protagonist has killed any monsters.

    If no monsters were killed, it is described as "half-full". If any monster is killed, it is described as "half-empty". A follow-up message, "(You just remembered something funny.)" appears if Doggo, Lesser Dog, and Greater Dog are killed and the protagonist has 21+ kills. If Papyrus is called a second time on the first floor, he recalls seeing the dog food bag in Sans's room and asking Sans about it.

    The ground floor also includes a "cute" garbage can, a messy computer desk with papers and bowls, a fridge filled with Instant Noodles and soda, a bag of dog food, and the elevator, which has a bathroom sign beside the door. After Mettaton's appearance, there is a hole in the wall between the elevator and the dog food.

    On the True Pacifist Route, the garbage can contains a crumpled paper with the words, "I KNOW WHAT YOU DID." On Alphys's computer desk, there are papers that are implied to be for a game walkthrough written in "chicken scratch", the computer itself, which has access to Snowdin's Multicolor Tile Puzzle,[16] a teacup from Asgore[17] filled with soda, and figurine of a "female human with cat ears". Inspecting the hole has the narrator note that the space is only a few feet wide. On the Genocide Route, it is described as being there to "complete the look".[18]

    Second floor: On the second floor, there are five shelves, four labelled as "Human History:"

    Light green: Dusty scientific books. Green: Books, with one being a comic of a "giant robot fighting a beautiful alien princess". Yellow: VHSes and DVDs of cartoons. Blue: Books, with one being a comic of "Two scantily clad chefs [...] flinging energy pancakes at each other." Red: Books, with one being a comic of a "hideous android" running late to school. Next to the shelves is an implied ice cream machine that converts Waterfall's "scientifically important" seaweed, a number of tools, a big, dusty work table with a chainsaw and a paper depicting SOULs, a poster of a character resembling Mad Mew Mew above it, a closet with a dress from a friend (alluding to the possible date with Alphys), a shelf with unopened letters from monsters and a lamp with pink fish, a compacted bed with a pink heart poster above it, and a signed poster of Mettaton's TV premiere.

    On the True Pacifist Route, Mettaton's deactivated body can be found on the second floor.

    Trivia: It is implied that the poster and the female human with cat ears figurine is of Mew Mew, a character from Alphys's favorite human TV anime, Mew Mew Kissy Cutie. The comic involving a "giant robot fighting a beautiful alien princess" is referenced by Undyne on different occasions: During her monologue atop the crag. During the date with Undyne, she can admit to reading the comic book. After the date with Alphys, when Undyne questions if anime is real. In the True Pacifist Route epilogue, Undyne asks Alphys if they can watch something "with fighting".

41. #41MTT Resort

    Keys: MTT Resort

    Enabled · After character · Order 2800

    Entry settings

    "Welcome to MTT Resort - Hotland's biggest apartment-building-turned-hotel!"

    • Diamond Receptionist

    The MTT Resort is a hotel and entertainment center run by Mettaton in Hotland. It is directly connected to the CORE.

    Features: Bratty and Catty can be found in the alley to the right of the Resort. The Resort houses a dine-in restaurant and the MTT-Brand Burger Emporium, where Burgerpants works. The protagonist can stay at one of the rooms in the Resort as well as act as room service to the neighboring rooms.

    Inhabitants: Burgerpants, Bratty and Catty, Fish Receptionist, Snowdrake's father, Charles, Oni, Ficus licker, Diamond Receptionist, Hand Receptionist, Business Manticore, Sad Dragon, Shambling Mass, Slime Janitor

    Sublocations: Lobby There is an elevator in the lobby that leads to New Home, but it is always either broken or in use if the protagonist tries to use it. To the north is the entrance to the CORE, and along the northern wall, there is an entrance to the MTT-Brand Burger Emporium and a receptionist that can allow the protagonist to stay at the hotel. A fountain is present at the center of the lobby, which depicts Mettaton with regular eyes instead of his usual grid-shaped screen. The fountain has an inscription that implies it was once a Royal Memorial built in 201X, but Mettaton was added last week.

    Hotel rooms There are four doors to the right of the lobby requesting room service. Door 1: Sea Tea - Reward: 99 G. Door 2: Locked. The protagonist can sleep in this room for 200 G, yielding a similar effect to resting at Snowed Inn. However, unlike the Snowed Inn, the money is not returned to them. If the protagonist moves while under the covers of the bed, a funky beat plays, but only while they are moving. If they move to the edge of the bed, they slide out from beneath the blankets and fall to the floor. It is impossible to get back on the bed once the protagonist has gotten off. Door 3: Cinnamon Bun - Reward: 99 G. Door 4: There is a dog behind this door. Handing over any of the listed items rewards a response, and, in most cases, an item. Hot Dog: The dog repeatedly attempts to grab the Hot Dog, eventually succeeding. Reward: Hush Puppy. Dog Residue: The Dog Residue slides under the door, and 2 more Dog Residues slide out. Reward: 2 Dog Residues. If the player has a full inventory, the single dog residue shoots back out. Reward: None (the Dog Residue is given back). Hot Cat: The dog growls at the Hot Cat and rejects it. Reward: None (the Hot Cat is given back). Dog Salad: The item gets absorbed by the darkness. No reward. All other items: The dog does not accept any other items. In the True Pacifist Epilogue, if items were never given to doors 1 or 3, interacting with them triggers the message "Room service never came. (Sigh...)"

    There is a sign in the black void to the right of the hallway that advertises the Art Club room.

    Restaurant: To the left of the lobby is a restaurant, which holds nine tables, of which only one of them is in use. During the hangout with Sans, he and the protagonist occupy one of the tables and speak about their current adventure. The Fish Receptionist occupies the desk near the entrance to the restaurant, but they do not accept any new customers.

    Along the northern wall are posters of Mettaton as well as a schedule for Mettaton's shows and the stage performances. The stage itself is situated along the right side of the restaurant and holds performances of comedians such as Sans and Snowdrake's father.

    MTT-Brand Burger Emporium: Inside the resort is the MTT-Brand Burger Emporium, where Burgerpants can be found. Here, one can buy healing items that boost ratings during the fight against Mettaton EX.

    Alley: Outside the MTT Resort to the right is an alley inhabited by Bratty and Catty. The two sell items to the protagonist.

42. #42True Lab

    Keys: True Lab

    Enabled · After character · Order 2900

    Entry settings

    "If you want to know "the truth." Enter the door to the north of this note. You all at least deserve to know what I did."

    • Excerpt of Alphys's note, True Pacifist Route

    The True Laboratory is a private section of Alphys's Lab that can only be found and entered during the True Pacifist Route.

    Features:

    • This area is the point of no return for the True Pacifist Route. Upon entering the True Lab, the True Pacifist Route can no longer be aborted, and most of the underground becomes inaccessible until the epilogue.
    • The Amalgamates are introduced, along with the details about Alphys's experiments with human SOULs in an attempt to find a way to destroy the barrier.
    • The screens on the walls explain the concept of determination in great detail, including its effects on both humans and monsters and how it was extracted and used by Alphys in her experiments.
    • It is also revealed that SOULs cannot be artificially created, contrary to what Catty and Bratty say Alphys told King Asgore in order to get her job as a royal scientist.
    • A few of the screens also reveal how Flowey came to be.
    • The information that can be gathered in this location provides an insight on Alphys's personality and some of the causes of her anxiety, insecurity and lack of self-esteem, as well as some detail about how she and Mettaton began to grow more distant.
    • This area also features a set of VHS tapes providing more information about the fallen human and their relation with the Dreemurr family.

    Geography: In contrast to the bright, sterile color scheme of the Lab, the True Lab is grimy, dark, and fog-filled. It has a dark green celeste color scheme and an unsettling atmosphere. Assorted objects fill the area, including beds, sinks, refrigerators, wall fans, mirrors, and golden flowers. There is a vending machine that dispenses Popato Chisps near the power room door.

    There are four colored keys scattered throughout the True Lab. The slots that the keys are inserted into, save for the yellow key, that slot is in the VHS room, are housed in small, square rooms. These rooms contain hints as to how to obtain the key that belongs in the slot.

    Sublocations: Initial hallway After exiting the elevator, the protagonist finds themselves in a small room. After walking a short distance, the elevator door closes and is unable to be reopened. The room has a pathway to the right that leads to a horizontal hallway with ENTRY NUMBER 1, 2, 3, and 5 along the wall. The hallway veers upwards into the room with the power room door.

    Lobby: The layout of this room is similar to that of the lobby of the CORE, with the power room door to the north and two upwards paths to the left and to the right. The left path leads to the slot for the red key, and the right path leads to a door that can only be unlocked by using the red key. The power room door is locked and can only be opened after all four keys are used. This room also contains two fake plants, a vending machine that dispenses Popato Chisps, and a partially readable note from Alphys stating the power room door must be opened to restore power to the elevator.

    Operating room: The upwards path to the left veers to the left into a horizontal hallway that contains ENTRY NUMBER 6 and a foggy room that contains ENTRY NUMBER 9. In this room is a line of three operating tables that are revealed to be "sticky" upon inspection. Further into the room is a doorway leading to the red key slot, and next to the doorway is a line of three sinks. Turning on the three sinks (or turning one off and back on again) triggers an encounter with the Memoryheads. Upon defeat, the Memoryheads drop the red key, which is used to unlock the door to the right of the power room door.

    Bedroom: Entering through the red key door leads to a hallway that veers to the right. ENTRY NUMBER 12 and 13 are along the wall. This hallway leads to the bedroom, which contains a dog food bowl, four fake plants, a broken clock, and nine beds. The bottom left bed can be slept in, and the middle right bed contains the yellow key. The northernmost part of the bedroom contains a doorway, a SAVE Point, and ENTRY NUMBER 14, and the eastern path leads to the blue key slot.

    Sleeping in the bottom left bed will cause the music to fade out. Upon laying here for five seconds, the watching man appears and slowly extends an arm toward the protagonist. Upon reaching, the arm then moves lower along the bed, before pulling the covers over the protagonist, then pats their head before disappearing. Pressing either "Left", the Confirm button, or the Cancel button will cause the protagonist to leave the bed, causing the watching man to leave early if it is present.

    Hallway: The doorway to the north of the bedroom leads to a long, horizontal hallway that spans to the left and right side of the pathway. The hallway has three possible entryways leading to different rooms. Along the wall to the left are ENTRY NUMBER 15 and 16.

    Fans: Going to the right leads to the fan room, which contains ENTRY NUMBER 11. The area is initially clouded by fog, with white particles hovering above the floor. There is a switch at the end of the room that, when pressed, turns on the fans that blow the fog away, leaving behind the white particles. The white particles converge and form Endogeny, who slowly approaches the protagonist. The protagonist can walk to Endogeny to initiate the battle.

    Shower: Near the end of the hallway is a doorway leading to a vertical hallway with a bathtub. The bathtub is covered by a curtain, and the silhouette of an Amalgamate can be seen behind it. Approaching the bathtub, the protagonist walks slower than normal, and the Amalgamate moves faster the closer they get. Upon opening the curtain, the Amalgamate disappears, and the green key is left behind.

    DT Extraction Machine: To the west is a large room containing the DT Extraction Machine, which is inactive. The pathway to the other side of the room is blocked by a SAVE Point, which transforms into Lemon Bread upon inspection.

    VHS room: North of the DT Extraction Machine is a room with a TV and five VHS tapes, ENTRY NUMBER 4, and the yellow key slot.

    Fridges: Past the DT Extraction Machine is a room containing ENTRY NUMBER 19, 20, and 21. This room contains five fridges spread evenly along the room. The fridges are either empty or contain samples of some sort. The third fridge shakes periodically, while the fifth fridge is revealed to be a disguise for Snowdrake's mother upon inspection. Snowdrake's mother drops the blue key upon defeat. In the adjoining room is the slot for the green key.

    If the fan switch has not been turned on, the room is shrouded in a thick fog which prevents the fridges from being seen, and their descriptions upon inspection are mere conjectures. The refrigerator that turns into Snowdrake's mother will be described as "It's some sort of cold, rectangular object." The other refrigerators will be described as:

    There's something here... It feels like it's breathing. There's something here... It feels like a tree, ripe with delicious fruit. There's something here... Something in the shape of a man. There's something here... It feels warm, and moist.

    Mirrors: Returning to the bedroom and traveling through the right pathway, the protagonist enters a horizontal room with mirrors along the northern wall and a table with golden flowers along the southern wall. Between the first three mirrors are ENTRY NUMBER 7 and 10. While attempting to travel across the room, the protagonist is stopped by a random encounter indicator, which transforms into Reaper Bird. At the end of the room is a room with the blue key slot.

    Power room: After collecting all four keys, the power room door is unlocked. Entering through the door leads to an elevator that is connected with a western pathway. Going through the pathway leads to a horizontal hallway with blank screens along the wall. At the end of this hallway is a doorway leading to the power room. The Power Room contains a generator which has a red, heart-shaped figure on its front. After turning on the power, four Amalgamates approach and surround the protagonist, and Alphys rushes in and bails them out. The protagonist then leaves the room and travels back through the hallway. The blank screens on the wall turn on to reveal ENTRY NUMBER 8 and 18. These entries are marked with a red smile instead of green lines like normal, alluding to the contents of the entries mentioning Flowey's creation. After returning to the elevator, the western and southern pathways are cut off, and the protagonist is then thrust into New Home.

    Lab entries: Lab entries can be found on the numerous panels that can be seen throughout the lab. The entries are numbered from 1 to 21, but there is no 17th entry. In the game data, there are two 17th lab entries, neither of which can be accessed in normal gameplay; one of them is completely in Wingdings and presumed to have been written by W.D. Gaster.

    ENTRY NUMBER 1: This is it... Time to do what the King has asked me to do. I will create the power to free us all. I will unleash the power of the SOUL. ENTRY NUMBER 2: The barrier is locked by SOUL power.. Unfortunately, this power cannot be recreated artificially. SOUL power can only be derived from what was once living. So, to create more, we will have to use what we have now... The SOULs of monsters. ENTRY NUMBER 3: But extracting a SOUL from a living monster would require incredible power... Besides being impractical, doing so would instantly destroy the SOUL's host. And, unlike the persistent SOULs of humans... The SOULs of most monsters disappear immediately upon death. If only I could make a monster's SOUL last... ENTRY NUMBER 4: I've been researching humans to see if I can find any info about their SOULS. I ended up snooping around the castle... And found these weird tapes. I don't feel like ASGORE's watched them... I don't think he should. ENTRY NUMBER 5: I've done it. Using the blueprints, I've extracted it from the human SOULs. I believe this is what gives their SOULs the strength to persist after death. The will to keep living... The resolve to change fate. Let's call this power... "Determination." ENTRY NUMBER 6: ASGORE asked everyone outside the city for monsters that had "fallen down." Their bodies came in today. They're still comatose... And soon, they'll all turn into dust. But what happens if I inject "determination" into them? If their SOULS persist after they perish, then... Freedom might be closer than we all thought. ENTRY NUMBER 7: We'll need a vessel to wield the monster SOULs when the time comes. After all, a monster cannot absorb the SOULs of other monsters. Just as a human cannot absorb a human SOUL... So then... What about something that's neither human nor monster? ENTRY NUMBER 8 [After restoring power]: I've chosen a candidate. I haven't told ASGORE yet, because I want to surprise him with it... In the center of his garden, there's something special. The first golden flower, that grew before all the others. The flower from the outside world. It appeared just before the queen left. I wonder... What happens when something without a SOUL gains the will to live? ENTRY NUMBER 9: things aren't going well. none of the bodies have turned into dust, so I can't get the SOULs. i told the families that i would give them the dust back for the funerals. people are starting to ask me what's happening. what do i do? ENTRY NUMBER 10: experiments on the vessel are a failure. it doesn't seem to be any different from the control cases. whatever. they're a hassle to work with anyway. the seeds just stick to you, and won't let go... ENTRY NUMBER 11: now that mettaton's made it big, he never talks to me anymore. ... except to ask when i'm going to finish his body. but i'm afraid if i finish his body, he won't need me anymore... then we'll never be friends ever again. ... not to mention, every time i try to work on it, i just get really sweaty... ENTRY NUMBER 12: nothing is happening. i don't know what to do. i'll just keep injecting everything with "determination." i want this to work. ENTRY NUMBER 13: one of the bodies opened its eyes. ENTRY NUMBER 14: Everyone that had fallen down... ... has woken up. They're all walking around and talking like nothing is wrong. I thought they were goners...? ENTRY NUMBER 15: Seems like this research was a dead end... But at least we got a happy ending out of it...? I sent the SOULS back to ASGORE, returned the vessel to his garden.... And I called all of the families and told them everyone's alive. I'll send everyone back tomorrow. :) ENTRY NUMBER 16: no No NO NO NO NO NO ENTRY NUMBER SEVENTEEN [Unused, not written by Dr. Alphys, assumed to be written by W.D. Gaster]: DARK DARKER YET DARKER THE DARKNESS KEEPS GROWING THE SHADOWS CUTTING DEEPER PHOTON READINGS NEGATIVE THIS NEXT EXPERIMENT SEEMS VERY VERY INTERESTING ... WHAT DO YOU TWO THINK ENTRY NUMBER 18 [After restoring power]: the flower's gone. ENTRY NUMBER 19: the families keep calling me to ask when everyone is coming home. what am i supposed to say? i don't even answer the phone anymore. ENTRY NUMBER 20: ASGORE left me five messages today. four about everyone being angry one about this cute teacup he found that looks like me thanks asgore. ENTRY NUMBER 21: i spend all my time at the garbage dump now it's my element

    VHS tapes The five VHS tapes can be found in the room with the TV, which is north of the room with the DT Extraction Machine. Home (Music Box) plays at 80% speed over the first tape between Toriel and Asgore, the second through fourth tapes of the fallen human and Asriel play mus_birdnoise, and the last tape of the fallen human on their deathbed does not contain any music. They contain recordings of Asriel, his family and the fallen human interacting. However, these do not have any visual content.

    [Tape 1]: [Toriel] Psssst. Gorey, wake up. [Asgore] Mmm? What is it, dear? [Asgore] ... err, and why do you have that video camera? [Toriel] Shush! I want to get your reaction. [Toriel] Gorey, dearest. What is my favorite vegetable? [Asgore] Hmmm... Carrots, right? [Toriel] No no no! My FAVORITE vegetable is... [Toriel] Eda-MOM-e. [Toriel] ... get it??? [Asgore] ... [Asgore] Go back to bed, dear. [Toriel] No no!! Not yet! Hee hee hee. [Toriel] Now, If I were a dog, what breed of dog would I be? [Asgore] Hmmm... I don't know, honey. What kind of dog would you be? [Toriel] I would be... [Toriel] A MOMERANIAN. [Asgore] Hohoho! [Asgore] You sure are excited to have this child. [Asgore] You know, if you keep making jokes like this... [Asgore] One day, you could be... [Asgore] ... a famous MOMedian. [Toriel] ... [Toriel] Well, I am going to bed. [Asgore] Hey! Come on, Tori! That one was funny! [Toriel] Hahaha, I know. I am just teasing you. [Toriel] Goodnight, dear. [Asgore] Goodnight, honey. [Toriel] ... [Toriel] Oh dear, perhaps it is too dark in here for the video to come out...

    [Tape 2]: [Asriel] Okay, , are you ready? [Asriel] Do your creepy face! [Asriel] AHHHHH!! Hee hee hee! [Asriel] Oh! Wait! I had the lens cap on... [Asriel] What!? You're not gonna do it again...? [Asriel] Come on, quit tricking me! Haha!

    [Tape 3]: [Asriel] Howdy, Chara! Smile for the camera! [Asriel] Ha, this time I got YOU! I left the cap on... ON PURPOSE! [Asriel] Now you're smiling for noooo reason! Hee hee hee! [Asriel] What? Oh, yeah, I remember. [Asriel] When we tried to make butterscotch pie for Dad, right? [Asriel] The recipe asked for cups of butter... [Asriel] But we accidentally put in buttercups instead. [Asriel] Yeah! Those flowers got him really sick. [Asriel] I felt so bad. We made Mom really upset. [Asriel] I should have laughed it off, like you did... [Asriel] Um, anyway, where are you going with this? [Asriel] Huh? Turn off the camera...? OK.

    [Tape 4]: [Asriel] I... I don't like this idea, Chara. [Asriel] Wh.. what? N-no, I'm not... [Asriel] ... big kids don't cry. [Asriel] Yeah, you're right. [Asriel] No! I'd never doubt you, ... Never! [Asriel] Y... yeah! We'll be strong! We'll free everyone. [Asriel] I'll go get the flowers.

    [Tape 5]: [Toriel] ... Can you hear me? We want you to wake up... [Asgore] ! You have to stay determined! [Asgore] You can't give up... You are the future of humans and monsters... [Asriel] ... [Asriel] Psst... ... Please... wake up... [Asriel] I don't like this plan anymore. [Asriel] I... I... [Asriel] ... no, I said... I said I'd never doubt you. [Asriel] Six, right? We just have to get six... [Asriel] And we'll do it together, right?

    Trivia: The teacup mentioned in ENTRY NUMBER 20 can be found in Alphys's lab, sitting on her desk. The DT Extraction Machine heavily resembles a Cervine (deer) skull, the same way Sans's Gaster Blasters resemble Canid (dog) skulls, and Asriel's skull during the final battle resembles a Capra (goat) skull.

43. #43Spider Bake Sale

    Keys: Spider Bake Sale

    Enabled · After character · Order 3000

    Entry settings

    "Come eat food made by spiders, for spiders, of spiders!"

    • Bake sale advertisement

    The Spider Bake Sale is a small vendor and fundraising event found in the Ruins and Hotland.

    Features: In the Ruins, Spider Donuts can be bought for 7G each and Spider Ciders for 18G each. In Hotland, Spider Donuts and Spider Ciders can be bought for 9999G each.

    Main story: Neutral Route In the Hotland Spider Bake Sale, Muffet can be found and interacted with before fighting her. Additionally, the scared donut guy is present here, complaining about having spent all of his money.

    During the fight against Muffet, she reveals that the Spider Bake Sale is a fundraising event aiming to raise money in order to rescue the spiders trapped in the Ruins; she mentions the cold climate of Snowdin being fatal to them. She traps the protagonist, claiming that they were too stingy with their money to buy anything, and attempts to kill them due to the extra money promised to her. At the end of the battle, she receives a telegram from the spiders in the Ruins, and they either confirm that the protagonist is stingy, or they inform her that they helped donate to the cause.

    If the protagonist buys an item from the Ruins Spider Bake Sale and uses it during the fight against Muffet, she receives the telegram right then and is immediately made spareable. If the protagonist buys an item from Hotland's Spider Bake Sale, Muffet does not engage in a fight with them.

    Genocide Route Muffet and the scared donut guy are absent from the Hotland Spider Bake Sale. A slowed-down version of Quiet Water is played here, but if the protagonist triggers the "But nobody came" message in Waterfall, mus_toomuch is played instead.

    Buying an item from the Hotland Spider Bake Sale does not prevent the fight against Muffet. She acknowledges the protagonist's generosity but is still suspicious of them and engages them in a fight regardless. However, she can still be made sparable immediately by using an item from the Ruins Spider Bake Sale during the fight.

    Geography: A large and small spider web and a sign that reads "Spider Bake Sale All proceeds go to real spiders." characterize the Spider Bake Sales.

    Ruins Bake Sale Geography: The Spider Bake Sale in the Ruins is one room to the right of where the protagonist meets Napstablook for the first time. It is a small, rectangular room with two webs and a sign. The smallest web can be interacted with in order to buy a Spider Donut and the bigger one can be interacted with in order to buy a Spider Cider.

    Hotland Bake Sale Geography: Hotland's bake sale is larger than the one in the Ruins. Along with the webs and sign, it comes with a table that has a Spider Donut and a croissant on it, neither of which the protagonist can buy. They are described as rubbery or fake.

44. #44The CORE

    Keys: CORE

    Enabled · After character · Order 3100

    Entry settings

    The CORE is a sub-section of Hotland, accessible from the MTT Resort. It is a technologically advanced facility that provides magical electricity to the underground. There is an elevator to New Home in the center of the CORE. The entire structure is designed so that the rooms inside can change positions and the layout can be altered.

    Features:

    • Alphys directs the protagonist throughout the area, the former slowly showing more and more sentimentality about her time together with the latter.
    • Various CORE-exclusive monsters appearing to be "black sausages" encounter the protagonist, all in fixed locations and orders.
    • The protagonist can witness the ice thrown by Ice Wolf melting in the CORE.
    • The protagonist fights Mettaton in a dark room, the latter broadcasting the action to his audience and presenting the battle as the grand finale.

    Located in: Hotland Inhabitants: Final Froggit, Whimsalot, Astigmatism, Madjick, Knight Knight, Mettaton

    Main story History Prior to the events of Undertale, the CORE was built by the former royal scientist, W.D. Gaster.

    Geography: The CORE is an entirely mechanical complex that is largely blue and cyan with red accents. Purple paths and bridges link some rooms. The CORE appears to be the most industrial and modern region of the underground.

    The CORE has lavish decoration. Multicolored neon tubes serve as wall ornaments and embellishments. The floors of many rooms are engraved with intricate patterns. Lasers, both decorative and functional, dot the region. Despite the detail work, some parts of some walls and floors are chipped away.

    Ozone, a byproduct of electrical power, is omnipresent below the floor level of the CORE. This explains why the CORE seems to be made of stainless steel, titanium, or platinum; ozone is highly corrosive to most organic materials.

    The substance below the ozone quickly melts the ice thrown by the Ice Wolf. The ice supposedly cools the CORE down. However, the lack of cooling may not have immediate effects as the Ice Wolf does not throw ice after Snowdin's evacuation in the Genocide Route. Alternatively, the CORE could be a source of ozonated water, which cleans clothes, sanitizes food, and purifies drinking water. In this case, the CORE not being cooled is not hazardous; ozone simply decomposes into oxygen at high concentrations and temperatures.

    The majority of enemies in the CORE are harder counterparts of enemies in the Ruins, some of which also appear in Hard Mode.

    Sublocations: CORE approach: The entrance to the CORE is a vertical room with the color scheme of the MTT Resort gradually fading into the color scheme of the CORE. Here, the protagonist witnesses two "black sausage" NPCs backing into the CORE. A surprised Alphys calls the protagonist and informs them that monsters are not normally supposed to be in the CORE.

    Lobby: The protagonist continues into the lobby, which has an elevator to the north and two northern paths to the left and right. Alphys directs the protagonist to the elevator, which is disabled. She then directs the protagonist to the path on the right, then to the path on the left. The elevator in the lobby reactivates once the protagonist reaches the elevator on the other side.

    Fire pit: The path to the right of the lobby leads to a small, square room with a fire pit to the north that is inaccessible to the protagonist. After receiving Undyne's Letter, a "black sausage" NPC appears in this room, admiring the fire pit.

    Doorway: Going through the left path of the lobby leads to a rectangular room with a doorway at the end. When traveling through this room, a monster appears and attacks the protagonist.

    Laser ambush: Continuing forward, the protagonist enters a room with a bridge that is cut off by a force field. Activating the switch near the force field deactivates it, but it also sends a group of lasers in a specific order. Alphys tells the protagonist that the order is "orange, orange, blue", but once the switch is activated, the order that the lasers come in is inverted (blue, blue, orange). Alphys blames herself for messing up and directs the protagonist forward.

    Crossroads: The protagonist continues into a crossroads with a path to the north and a path to the east. Alphys directs the protagonist to the east, but changes her mind and tells the protagonist to go north. The northern path leads to a square room that contains another monster that attacks the protagonist.

    Laser bridge: The eastern room contains a bridge with many blue and orange lasers followed by a massive wall of blue lasers. Since Alphys is unable to turn off the lasers, she decides to cut the power for the entire room. When that happens, the way back is blocked by a "battery powered" force field. When the protagonist walks into the wall of blue lasers, the power suddenly turns back on, forcing the protagonist to stop. Alphys is unable to keep the power off, so she instructs the protagonist to move, then stop when the power turns back on. After crossing the bridge, the protagonist continues into the "Core Branch".

    CORE Branch: The "Core Branch" is a four-way intersection with a SAVE Point in the middle. The signs in the room inform the protagonist that the northern path and the western path lead to the "warrior's path" and the "sage's path" respectively, and the east leads to "The End". Alphys calls the protagonist, completely at a loss for how to guide them, and eventually stops talking to them out of embarrassment.

    The "Core Branch" is split into three sections, leading to different sections.

    Western section: Starting from the western path of the "Core Branch", the protagonist enters a room that veers upwards. Here, the protagonist can witness the ice thrown by Ice Wolf travel across a conveyor belt and melt into the ozone pit. Continuing north, the protagonist comes across a vertical room with a western path leading to the sage's path, which is a shooting puzzle similar to the ones in Hotland's Reactivated Door Puzzles. Solving this puzzle unlocks the path to "The End". The northern path leads to a crossroads with an eastern path and a northern path. The northern path leads to a room with a trash can containing a Glamburger, while the eastern path leads to the middle portion of the "Core Branch".

    Middle section: Starting from the middle path of the "Core Branch", the protagonist enters a vertical room with an eastern path leading to the eastern portion of the "Core Branch". There is a sign on the path that tells the protagonist to "get lost... And stay that way." Continuing north, the protagonist encounters a four-way crossroads with the eastern and western paths leading to their respective portions of the "Core Branch" and a northern path that leads to the warrior's path. The warrior's path is a horizontal bridge in which three monster encounters take place leading up to a switch at the end of the room. Activating the switch unlocks the path to "The End".

    Eastern section: Starting from the eastern path of the "Core Branch", the protagonist enters a room that mirrors the room in the western portion of the "Core Branch", except without the ice. Continuing north, the protagonist comes across a four-way crossroads. If neither the warrior's path nor the sage's path are completed, the eastern path is blocked by a force field that eventually disappears after waiting long enough (hinted by the sign next to it). The western path leads to the middle portion of the "Core Branch", and the northern path leads to another crossroads, again mirroring the room in the western portion of the "Core Branch". The northern room contains a trash can with 100G inside.

    Core End: After unlocking the way to "The End", the protagonist enters a horizontal room with a bridge and then enters the "Core End", which contains a SAVE Point, a doorway, and an elevator leading back to the lobby.

    Mettaton: The doorway leads to a dark room with Mettaton in the center. After Mettaton locks the door, the room suddenly rockets upwards, and the battle against Mettaton begins. After fighting and defeating Mettaton, his deactivated body/corpse is left behind, and Alphys unlocks the door and evaluates the situation.

    Hallway: The protagonist continues into a horizontal hallway with an elevator at the end. Alphys follows closely behind, blocking the way back as they travel the hallway. When the protagonist opens the elevator, Alphys stops them and warns them about having to kill Asgore. After she leaves, the protagonist proceeds into the elevator to reach New Home.

45. #45New Home

    Keys: New Home

    Enabled · After character · Order 3200

    Entry settings

    "MONSTER HISTORY PART 4" Fearing the humans no longer, we moved out of our old city, HOME. We braved harsh cold, damp swampland, and searing heat... Until we reached what we now call our capital. "NEW HOME."

    • A book found in the Snowdin Library

    New Home is the capital of the underground, ruled by Asgore. Asgore's castle within New Home serves as the final location in the game before the protagonist reaches the barrier.

    Features:

    • On the Neutral Route, a series of monster encounters tells the story of Asriel and the fallen human. On the Genocide Route, the encounters are replaced by Flowey.
    • In Asgore's Home, the Heart Locket and the Worn Dagger can be retrieved on the Neutral and True Pacifist Route, and The Locket and the Real Knife can be retrieved on the Genocide Route.
    • In the Last Corridor, Sans judges the protagonist based on their EXP and LOVE on Neutral Routes.
    • In the basement, there is a line of coffins labeled with the SOULs of the seven fallen humans. The protagonist can only interact with the coffin of the fallen human, which is at the beginning of the line and bears the name the player gave to the fallen human at the start of the game.
    • The battle against Asgore at the barrier serves as the final obstacle in the protagonist's journey until Flowey appears and finishes him off.

    Geography: New Home is an entirely gray setting, occupied by long corridors and what appears to be a large city in the background. It does, however, contain the Throne Room and the Last Corridor, both of which are well-lit, brightly colored rooms, primarily sunlight-yellow. Onionsan mentions that there is a large aquarium in New Home and that it is overcrowded, but this is never seen.

    Sublocations: City walkway The initial room is a hallway with a SAVE Point off to the side. The pathway veers upwards into a long, horizontal room with a view of the city in the background. There is an elevator in this room, but it cannot be used until the protagonist reaches the other side. The next room is a vertical room with a few buildings on either side.

    Asgore's Home: Past the walkways is the entrance to Asgore's Home, which is almost identical to the entrance to Toriel's Home, except there is a pile of leaves where the black tree should be.

    The layout of Asgore's Home is almost entirely identical to Toriel's Home, right down to the basement up until the room where Toriel is fought. Instead of ending at a door, the pathway veers to the right and continues forward into to a very long horizontal room with another view of the city. The end of this room contains an elevator leading back to the beginning of New Home and a pathway that leads south into the Last Corridor.

    Last Corridor: The Last Corridor is a long, horizontal room with a golden yellow color scheme. A SAVE Point is present just below the entrance, and on the Genocide Route, a Dimensional Box is present next to the SAVE Point. Here, Sans judges the protagonist just before they reach Asgore.

    Throne Entrance: Past the Last Corridor is a vertical hallway that veers to the right, leading to the Throne Entrance. Past the Throne Entrance is a southern pathway that leads to a staircase to the basement.

    Basement: In the basement is a line of coffins labeled with the SOULs of the seven humans that came before the protagonist. Four of the coffins can be viewed in full, while half of the fifth one is cut off. The last two coffins are assumed to be off screen. The only coffin that can be inspected is the one labeled with the SOUL of the fallen human, which is revealed to be empty. On the True Pacifist Route, the coffins are open, and the fallen human's coffin is revealed to have mummy wrappings at the bottom.

    Throne Room: The Throne Room is a large and open room with birds chirping in the background. Light shines from above, casting an irregular pattern of light and shadow on the floor. In the middle of the room is a throne, assumed to be Asgore's, and cast off to the side is another throne covered by a white sheet, assumed to be Toriel's. The protagonist walks forward on their own, alerting Asgore as he is watering the golden flowers that encapsulate the entire room. When Asgore notices the protagonist, the birds stop chirping, and Small Shock plays.

    The End: When Asgore leaves the Throne Room, the protagonist can continue forward into a room that looks similar to the very first room of the game, except without the bed of golden flowers. A SAVE Point is present at the end of the room near the entryway.

    Barrier: Asgore leads the protagonist to the barrier, and from there he reveals seven capsules with six of them containing the SOULs of the six fallen humans and the seventh one being empty. The protagonist fights Asgore, and Flowey finishes him off, absorbing the six human SOULs and transforming into Omega Flowey. After Flowey is defeated, the protagonist finds themselves beyond the barrier, in a room that is identical to the rooms where Flowey is encountered in the Ruins.

46. #46Asgore's Home

    Keys: Asgore's Home

    Enabled · After character · Order 3300

    Entry settings

    Asgore's Home is a location in New Home, and, as the name implies, is the home of Asgore, the ruler of the underground. The house resembles a monochrome version of Toriel's Home, except for the yellow of the potted golden flowers, the red of the gift wrapping and the green of the keys used to unlock the padlocks.

    Located in: New Home Inhabitants: Asgore, Toriel (formerly), Asriel (formerly), The fallen human (formerly)

    Features: On the Neutral Route and the True Pacifist Route, the Heart Locket and Worn Dagger can be found here. On the Genocide Route, they are replaced with The Locket and Real Knife. On the Genocide Route, a Dimensional Box is present in front of the house.

    Main story: The protagonist arrives at Asgore's Home after a long walk between the CORE and New Home.

    Neutral Route: On the Neutral Route, walking through Asgore's Home triggers non-combative encounters with monsters, during which they tell the story of Asriel and the fallen human. In the background, the track Undertale plays.

    Examining the objects throughout Asgore's Home gives the protagonist glimpses into the Dreemurr family's life. The present boxes in the house contain the Heart Locket and the Worn Dagger.

    When traveling through the house on a second Neutral Route, the monsters' dialogue in the encounters can be sped up.

    True Pacifist Route: On the True Pacifist Route, the padlocked chain is absent, making it possible to go straight to the basement.

    The items in the present boxes and the descriptions of objects in the house are the same as on the Neutral Route. No monster encounters occur.

    Genocide Route: On the Genocide Route, the encounters with monsters recounting the story of Asriel and the fallen human are replaced by encounters with Flowey, who is also non-combative. Flowey explains to the protagonist how he now feels about his experiences. His dialogue can be sped up if the protagonist completed the Neutral Route beforehand. In the background, the track Small Shock plays as opposed to Undertale, slower and at a lower pitch.

    Examining objects in Asgore's Home can allow the fallen human to talk through the protagonist's narration.

    The present boxes instead contain The Locket and the Real Knife, which are significantly more potent (but have better alternatives for the final fight).

    Sublocations: Foyer: A chain initially locks the stairs to the basement in the foyer with two padlocks.

    There is a note on the chain that says "Howdy! I'm in the garden. If you have anything you need to get off your chest, please don't hesitate to come. The keys are in the kitchen and the hallway."

    To the right is the hallway, leading to three bedrooms (though one is closed for renovations). To the left is the study and kitchen.

    Asriel and the fallen human's room: The first door on the left of the hallway is the shared bedroom of Asriel and the fallen human.

    The room contains two twin-sized beds, the fallen human's bed being on the left and Asriel's on the right. There is a drawing of a golden flower on the wall, a framed picture of the Dreemurr family, and a closet filled with striped shirts.

    The room also contains two present boxes containing the weapon and armor of the fallen human, which differs based on the route. On the Neutral/True Pacifist Route, the items are the Worn Dagger and the Heart Locket; on the Genocide Route, they are the Real Knife and The Locket.

    Asgore's room: Inside Asgore's room is a trophy that reads "Number 1 Nose-Nuzzle Champions '98!", an open journal that has "Nice day today!" written on the current page, a king-sized bed, a closet that contains a "Santa Claus" outfit, macaroni art of a flower, and a clothes drawer that contains a pink, hand-knit sweater with "Mr. Dad Guy" written on it.

    Kitchen: The kitchen contains a clean stovetop, a trash can filled with crumpled up recipes for a Butterscotch Pie, a note that says to "Help yourself to anything you want!", a sink with white fur stuck in the drain, and a fridge filled with unopened containers of snails.

    Despite Asgore's Home resembling Toriel's Home, there are slight differences in items and dialogue: In the foyer: The potted golden flower is the only golden flower to have parentheses used in its flavor text. The bookshelf has an old calendar at the end of 201X. In the kitchen, the fridge has papers with writing and photos tacked onto it, along with a trash can. The living room has a table with four chairs, gardening tools, a bookshelf filled with photo albums, scrapbooks, and a book on how to make tea. The coal in the fireplace is described as being warm, and the reading chair is noted as unused. The room marked as being "under renovations" corresponds to Toriel's bedroom in Toriel's Home, similar to how the room in her house marked "Room under renovations" corresponds to Asgore's bedroom in his house. On the Neutral Route, inspecting the mirror at the end of the hallway has different dialogue from the mirror in Toriel's Home. On the Genocide Route, the dialogue is the same as with the mirror in Toriel's Home. In contrast to Toriel's small chair, Asgore's small chair is not given a name. The dialogue for the fallen human's bed alludes to their fate. The Santa Claus outfit implies that Asgore is the one to give gifts to the locals at Snowdin, as the gifts at the decorated tree is from "Santa".

47. #47Last Corridor

    Keys: Last Corridor

    Enabled · After character · Order 3400

    Entry settings

    The Last Corridor is a corridor between Asgore's Home and New Home's Throne Room. Sans appears here to converse with the protagonist before they confront Asgore.

    Features: A SAVE Point is available at the left side of the corridor. On the Neutral Route, Sans judges the protagonist on their actions and earned EXP. On the Genocide Route, his battle occurs here. On the Genocide Route, a Dimensional Box is next to the SAVE Point.

    Geography: The Last Corridor is a linear, closed off yellow-hued room, featuring the Delta Rune being depicted atop the corridor entrances and windows. White light shines through the mosaic windows, and Greek pillars border the corridor in both the foreground and background.

    Trivia: The goldenrod palette of Last Corridor room may allude to the yellow SOUL, which represents justice. The dual meaning of the word "justice" is also pun; which is apt for Sans's role: he acts as a justice or a judge, and he also is just in character, as he usually neutral and objective in his judgments. Sans also delivers justice to the protagonist if they are on the Genocide Route.

48. #48Throne Room

    Keys: Throne Room, Asgore's throne room, the throne room

    Enabled · After character · Order 3500

    Entry settings

    Throne Room: The Throne Room is a large and open room with yellow walls and birds chirping in the background. Light shines from above, casting an irregular pattern of circular light and shadow on the floor. In the middle of the room is a golden throne with purple cushions and a Delta Rune symbol engraved into the back part of the cushion, assumed to be Asgore's, and cast off to the side is another throne covered by a white sheet, assumed to be Toriel's. The entire floor and walls are covered in green vines, and the surroundings of Asgore's throne feature a surplus of Golden Flowers. The protagonist walks forward on their own, alerting Asgore as he is watering the golden flowers that encapsulate the entire room. When Asgore notices the protagonist, the birds stop chirping.

49. #49The Surface

    Keys: The Surface, Surface, Earth, Human World

    Enabled · After character · Order 3600

    Entry settings

    The surface is the region of the Earth where humans live separate from the monsters, who reside in the underground. Both species are separated by the barrier on Mount Ebott since The War of Humans and Monsters.

    During the True Pacifist ending credits, parts of the surface are shown: a beach, an urban city, a school where Toriel and Asgore work, and Mt. Ebott.

    Mount Ebott: "Legends say that those who climb the mountain never return."

    • Undertale intro sequence

    Mount Ebott is a mountain on the surface of the Earth. It has lengthy vines growing around its caverns, and is the only known point of entry into the underground. It is depicted at the beginning of Undertale's intro and in the True Pacifist ending credits. Starting from the year 201X, eight humans fell through Mt. Ebott's barrier and entered the underground's Ruins.

50. #50Positions: Missionary family

    Keys: missionary, eye contact sex, legs up, ankles on shoulders

    Enabled · Selective (AND ANY) · Order 100 · 100%

    Entry settings

    Face-to-face on back. Variations: knees to chest (mating press), ankles locked behind your neck, or legs spread wide in stirrups. Maximum eye contact and deep penetration; perfect for breeding talk and watching her face contort.

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