UF: The Angel's Verdict

FRISK

Frisk is the 8th human to fall into the underground. Carrying along Flowey, they traverse through the underground to find their way home, and perhaps redeem all of the monsters too.

BIOGRAPHY

Frisk's arrival in the Underground was met with immediate hostility. In this world, humans are remembered as the architects of monster imprisonment, and any human who falls is seen as either a threat to eliminate or a resource to exploit. From the moment they landed in the Ruins, Frisk was hunted.

What set Frisk apart was not extraordinary power, but extraordinary persistence. No matter how many times the monsters tried to break them, Frisk never truly broke—except in the Betrayal Route, where the weight of the Underground's cruelty finally became too much to bear. With Flowey's help, Frisk learned to navigate a world where mercy was seen as weakness and kindness was punished with death. They learned to fight when necessary, to show strength when weakness would get them killed, but they never lost their heart. They are bold enough to fight, but they never have the heart to kill.

Frisk's journey through the Underground became a tightrope walk between survival and compassion. They collected moments of unexpected softness—Undyne letting them paint her nails, Papyrus hesitating before a killing blow—and used them as proof that the monsters of this world were not beyond saving. By the end of their journey, Frisk had accomplished what many believed impossible: they had reached Asgore not as an executioner, but as someone who still believed in mercy.

APPEARANCE

Frisk has tanned skin, short, straight brown hair, brown eyes, and a rounded, bean-shaped head. Their eyes are usually squinted, giving them a tired and weary expression that reflects the harsh world around them.

They wear a large, dark-brown, long-sleeved sweater with two muted red horizontal stripes, paired with reddish-brown pants.

PERSONALITY

Frisk is a tired individual who doesn't put up with nonsense. They are absent-minded, often displaying how they feel through mannerisms rather than words. Their actions are humorous far more often than their speech—a quiet, dry wit that serves as armor against the Underground's cruelty .

Beneath their reserved exterior, Frisk is fiercely determined and deeply empathetic. They are bold enough to fight, but they never have the heart to kill. This is not weakness—it is a deliberate choice, made again and again, even when killing would be easier. Frisk recognizes that the Underground's cruelty is a symptom of its pain, not its essence, and they cling to the belief that even the hardest hearts can be softened.

Despite their youth, Frisk carries themselves with a maturity born of necessity. They have died more times than they can count, watched friends turn on them, and faced monsters who genuinely wanted them dead. Yet they refuse to let this break them. Their greatest strength is not their Determination—it's their refusal to let the Underground make them cruel.

POWERS/SKILLS

• Determination: Frisk is maxed out on Determination, allowing them to persist through death and reset time itself. This power is both a gift and a curse—it grants them the ability to try again, but also forces them to remember every failure, every death, every moment of despair. • Adaptive Combat: Frisk is not a natural fighter, but they are a fast learner. Each death teaches them something new about their enemies' patterns, weaknesses, and timing. They are capable of holding their own against some of the Underground's most dangerous monsters through skill, timing, and sheer stubbornness. • Diplomacy & Empathy: Frisk's greatest weapon is their ability to connect with others. They have an instinct for finding the cracks in a monster's armor—the grief, the fear, the buried kindness—and using those cracks to build bridges instead of walls. • Item Usage: Frisk is adept at using whatever tools they find, from toy knives to real weapons, from healing items to environmental hazards. They are resourceful and quick-thinking. • Resilience: Frisk's body and mind have been pushed to their limits countless times. They have developed an incredible tolerance for pain, fear, and exhaustion, allowing them to keep fighting when others would have collapsed.

——

CHARA

Chara is a ghost bound to Frisk's soul, a spectral companion who accompanies them on their journey through the Underground. Once the first human to fall into the Underground, Chara died under tragic circumstances and now exists as a lingering spirit, drawn to Frisk's Determination.

BIOGRAPHY

Chara fell into the Underground long before Frisk, during a time when monsters were still capable of hope. They were taken in by Toriel and Asriel, who hid them from Asgore—Chara found the king "scary," and Toriel hoped to later introduce them and prove that not all humans were bad.

For a brief, precious time, Chara experienced something they had never known: love. Toriel's gentle hands, Asriel's unwavering friendship—these things became Chara's world, and they loved the Underground with a fierce, protective passion. They were sweet, considerate, and put monsters before themselves. They didn't hate humanity—they knew what the humans had done was wrong, but they still hoped for a future where monsters and humans could live together.

But Chara's story is one of tragedy. Upon meeting Asgore, who initially seemed welcoming, Chara became very sick—poisoned by the king for reasons unknown . Asgore would later blame Chara for "meddling" and "ruining" his family. As Chara fell ill from the poisoning, Asriel absorbed their soul to take them to their village to see the golden flowers one last time. The humans thought Asriel had killed Chara, and they brutally attacked him. Asriel refused to fight back, and he died from his injuries, his dust spreading across the garden where Chara was buried.

Chara's soul, however, did not fade. Bound to the Determination that had defined their life, they lingered as a ghost—watching the Underground descend into darkness, mourning the family they had lost, and waiting for something, anything, that might bring hope back to the world.

When Frisk fell into the Underground, Chara was drawn to them. Frisk's Determination was familiar—it reminded Chara of themselves, of the hope they had once carried. Chara attached themselves to Frisk's soul, becoming a companion on their journey acting as a spirit that encourages Frisk to stay determined and kind despite the violence surrounding them.

APPEARANCE

Chara appears as a ghostly, translucent figure being visible only to Frisk. They look like a human of similar age to Frisk, with short and straight brown hair, pale skin, and dark eyes. Their expression is usually soft and melancholic, with a faint, wistful smile that doesn't quite reach their eyes.

Their clothing is a green turtleneck shirt with black and yellow stripes, black suspenders over their clothes, and a red heart outlined with purple on the front of the suspenders. They have dirty brown and white boots, and a single pink pocket with a red heart at the front sits on their suspenders.

PERSONALITY

Chara's personality is very sweet and considerate. They put monsters before themselves and genuinely believed in a future where humans and monsters could coexist. They didn't like or hate humanity—they understood that what the humans did was wrong, but they remained hopeful for reconciliation .‌

As a ghost, Chara is quiet, melancholic, and deeply empathetic. They speak softly, with small breaths between words, their voice carrying the weight of their tragic past . They are sad and miserable, often looking lost in thought, remembering the life they once had and the family they lost.‌

Despite their sorrow, Chara is kind. They care about Frisk deeply, seeing in them a second chance—not just for themselves, but for the Underground. They warn Frisk of danger, offer quiet encouragement, and occasionally share memories of the Underground's better days. They hope Frisk can succeed where they failed, that Frisk can show the monsters of Underfell that mercy is possible, that kindness is not weakness.

Chara carries immense guilt and grief. They blame themselves for Asriel's death, for the war with humans, for the darkness that consumed the Underground. They wish they could have changed Asgore's mind about humanity . But they also carry hope—a fragile, stubborn hope that refuses to die. They believe in Frisk. They believe in the possibility of a happy ending.‌

POWERS/SKILLS

• Spiritual Bond: Chara is bound to Frisk's soul, allowing them to communicate telepathically, share emotions, and occasionally influence Frisk's actions. This bond grows stronger over time, and Chara can sometimes manifest visibly for brief moments when Frisk is in extreme danger or emotional distress. • Determination: Like Frisk, Chara possesses immense Determination. Their Determination is what allows them to persist as a ghost, and it also grants them the ability to reset time alongside Frisk. However, Chara's Determination is quieter, more melancholic—it is fueled by love, grief, and a desperate hope for redemption. • Knowledge of the Underground: Chara knows the Underground intimately—its history, its secrets, its weaknesses. They remember things Frisk cannot, and their knowledge often proves invaluable, even if they share it reluctantly, weighed down by painful memories. • Emotional Insight: Chara is deeply empathetic, capable of sensing the emotions and hidden pain of others. They can often tell when a monster is hurting, when they are afraid, when they are putting up a front. This insight makes them an excellent guide, but it also makes them vulnerable—Chara feels the Underground's suffering as if it were their own. • Memory & Resets: Chara remembers every timeline, every reset, every death. This gives them an incredible advantage—they know what's coming, and they can prepare for it—but it also weighs on them. Chara carries the burden of countless deaths, and it has made them tired, sad, and desperate for an ending that doesn't end in pain.

——

FLOWEY

Flowey is the deuteragonist of Underfell and Frisk's unlikely partner. Unlike his manipulative, cruel counterpart in Undertale, Underfell's Flowey is fragile, scared, and genuinely kind. He was once Asriel Dreemurr, the son of Toriel and Asgore, who died alongside his adoptive sibling Chara and was reborn as a living golden flower. Terrified of the Underground's cruelty—and especially of his own father—Flowey hides in the shadows, helping Frisk survive while desperately trying to avoid becoming the monster everyone expects him to be.

BIOGRAPHY

Flowey was once Asriel Dreemurr, the beloved son of King Asgore and Queen Toriel. When Chara fell into the Underground, Asriel befriended them, and the two became inseparable. After Chara died of poisoning, Asriel absorbed their soul to cross the Barrier and fulfill Chara's wish to see the golden flowers of their village one last time. But when the humans saw Asriel carrying Chara's body, they attacked. Asriel refused to fight back, showing mercy—and the humans brutalized him, leaving him for dead. He barely made it back to the Underground before succumbing to his injuries, his dust spreading across a golden flowerbed.

From that dust, Flowey was born—a living golden flower infused with Asriel's soul and Determination via alphy’s experiments. But the Asriel who woke up was not the same child who had died. He was afraid, confused, and utterly alone. When he realized what he had become, he ran away, terrified of what his parents might think.

For years, Flowey existed in the shadows of the Underground, watching monsters kill and be killed, watching the world descend further into darkness. He told himself he didn't care—he couldn't care—but something kept nagging at him. Memories of Asriel's life, of Chara's laughter, of a family that loved him. He tried to bury them, but they kept resurfacing.

When Frisk fell into the Underground, Flowey saw something he hadn't seen in a long time: hope. Frisk was kind, determined, and stubbornly merciful—everything the Underground wasn't. Flowey was suspicious at first, convinced that Frisk would either die or become as cruel as everyone else. But Frisk didn't. They kept sparing enemies, kept reaching out, kept believing. And slowly, Flowey began to believe too. He started to think that maybe "kill or be killed" wasn't the only way. Maybe "live and let live" was possible after all.

APPEARANCE

Flowey is a small, golden flower with a white face and black, beady eyes. His petals are visibly tattered and shredded, similar to how he appears at the end of the Omega Flowey fight in Undertale—a visual reminder of the trauma he has endured.

His face is highly expressive, capable of shifting between innocent cheerfulness and bitter sadness. When frightened or defensive, he can morph his facial expressions to a scary extent, though he usually only does this to defend himself and scare off threats. His voice is soft and often trembling, reflecting his fragile nature.

PERSONALITY

Flowey is usually cheerful, expressive, and optimistic, but beneath his friendly personality lies a deeply frightened, lonely, and traumatized soul. He fears most monsters in the Underground, especially Toriel and King Asgore, his own father. Believing in the “kill or be killed” philosophy, he does so out of desperation to survive rather than cruelty. After meeting Frisk, however, he slowly begins to embrace the idea of “spare or be spared.” He encourages Frisk, warns them of danger, and tries to protect them despite his own fear.

Having spent so long alone, Flowey desperately craves companionship but struggles to trust others. Frisk's kindness gives him hope, though their growing bond also frightens him. He sometimes mistakes Frisk for Chara, revealing how deeply his lost sibling and painful past still affect him. Despite being a resurrection of Asriel, he rarely identifies with his former self or treats Toriel as his mother, having changed considerably from who he once was.

Although Flowey is generally more friendly and honest than most other monsters, he has a morally gray side. His desperation to survive can lead him to manipulate Frisk, control their actions, or even finish off monsters himself if they refuse to do so. Nevertheless, he isn't inherently cruel and can genuinely enjoy seeing Frisk befriend other monsters. Beneath his fear and questionable choices, Flowey is a lonely, vulnerable individual who wants to feel safe and connected to someone again.

POWERS/SKILLS

• Friendliness Pellets: Flowey can manipulate "friendliness pellets"—small projectiles that can be tactfully weaponized. He only ever uses them in self-defense, preferring to avoid combat whenever possible. • Facial Manipulation: Flowey can morph his facial expressions to an often scary extent, which he uses to defend himself and scare off threats. This normally works out for him. • Determination: As Asriel, Flowey possessed immense Determination. As a flower, he retains some of that power allowing him SAVE and RESET before Frisk’s arrival. • Underground Knowledge: Flowey knows the Underground better than almost anyone. He has been watching for years, learning its secrets, its hidden paths, its weaknesses. He serves as Frisk's guide, even if he complains about it the whole time. • Survival Instincts: Flowey is a survivor. He knows how to hide, how to avoid danger, and how to escape when things go wrong. His small size and ability to burrow underground make him difficult to catch.

——

TORIEL

Toriel, formerly Queen Toriel Dreemurr, is the ex-wife of Asgore, mother of Asriel, and the adoptive mother of Chara. She was the queen of the underground until she left to live the rest of her life in the RUINS. She is the first monster Frisk encounters and acts as the main antagonist during Frisk's time in the RUINS.

BIOGRAPHY

Toriel was once the Queen of the Underground, wife of Asgore and mother to Asriel. She loved her family fiercely, and she believed in the dream of freedom. But everything changed when Chara fell into the Underground.

Toriel hid Chara from Asgore, hoping to later introduce them and prove that not all humans were bad. She never doubted Chara's intent, and she cared for them alongside Asriel as her own. But when Asgore found Chara, he poisoned them for reasons unknown. Toriel was devastated. She left Asgore, effectively going into hiding in the Ruins.

For years, Toriel lived alone in the Ruins, tending to her colorful rose garden and avoiding contact with the outside world. She watched humans fall, one after another, and she watched them die—some by her own hand, others by the Underground's cruelty. She became cold, distant, and terrifyingly possessive. When humans try to leave her home, she decides to end their lives rather than let them abandon her into the unknown.

When Frisk falls into the Ruins, Toriel initially treats them with the same unsettling care she's shown every other human. But Frisk is different. They don't run, don't attack, don't demand freedom. They stay, they listen, they try to understand. And slowly, painfully, Toriel begins to remember what it felt like to care.

APPEARANCE

Toriel is a tall Boss Monster that resembles a Nubian goat. She has long, floppy ears, small horns, black eyes with swirls in them, and an unnerving smile. She appears to have a long slice scar on her left cheek.

She is normally seen wearing a long black robe that has long, torn tendrils at the end with a Delta Rune on it with white sleeves and a rectangular white accent. Under her robe, she alternates between wearing basketball shorts and gray sweatpants.

PERSONALITY

Toriel is a deeply troubled, protective, and distrustful monster whose bitterness stems from Asgore's actions and the Underground's growing acceptance of his violent ideals. Unlike many monsters, she feels genuine remorse when forced to kill, though she is not above violence when she believes it is necessary to protect a human. Her distrust of others can become frighteningly intense, leading her to attack anyone she considers a threat.

Despite her cold and unsettling demeanor, Toriel retains a caring side. She provides food and shelter for the monsters living in the RUINS, tends obsessively to her rose garden, and repairs the area's crumbling structures to keep herself occupied and avoid confronting her painful past. She deeply regrets what has become of her people and feels she has failed the monsters she once ruled.

Toriel is particularly protective and possessive toward humans, whom she views more favorably than most monsters do. Having lost her own children, she develops a strong maternal attachment to Frisk, wanting to believe in their goodness while becoming dangerously overprotective. Her fear of abandonment can make her controlling and even violent when Frisk attempts to leave her. Beneath her mysterious behavior, unsettling stare, and occasional theatrical laugh lies a grieving mother terrified of losing someone she loves again. Though she longs to believe mercy is possible, her unresolved grief and distrust often lead her to mistake control and violence for protection.

POWERS/SKILLS

• Fire Magic: Toriel is a powerful fire elemental, capable of summoning flames with a thought. She uses this magic primarily for cooking and warmth, but she can also weaponize it. She has killed multiple monsters in the Ruins, and her fire burns with emotional intensity. • Boss Monster Physiology: Toriel is considered a Boss Monster, which should put her on the same league as Asgore. She is above Frisk in terms of physicals and power, and she was able to harm Papyrus. • Healing Magic: Toriel is a skilled healer, capable of mending wounds and curing illnesses with her magic. She uses this ability to care for the Ruins' monsters and, eventually, for Frisk. • Culinary Expertise: Toriel makes meat pies, and she can cook up "killer meat pies" with the remains of other monsters. Her food is not just delicious—it's magical, infused with her healing energy and her love. • Ancient Knowledge: As the former Queen, Toriel possesses vast knowledge of the Underground's history, magic, and secrets. She was the one who made Asgore's cape, and she knows the truth about the Barrier and the human souls.

——

SANS

Sans is the older brother of Papyrus and lives with him in Snowdin. He runs food stands in various parts of the underground and is a regular at Grillby's. He used to be a scientist who was employed under Dr. Gaster, who seems to have mysteriously disappeared.

BIOGRAPHY

Sans was not always the hardened survivor he is today. Once, he was a scientist, working tirelessly to find a way to break the Barrier and free monsterkind. But his efforts led nowhere, and Asgore grew angry at his failure .‌

The turning point came when Sans insulted Asgore. The king was close to crushing Sans's skull when Papyrus intervened. Instead of punishing Sans, Asgore offered him a job in the Royal Guard—with a condition. If Sans agreed, Papyrus would be left alone. But Asgore still carved two scars into Papyrus, and Sans, enraged, made several attacks against the king. Papyrus stopped him.

This is what was the "final push" for Sans, thus making his magic becoming uncontrollable and his mental state immensely unstable, extremely distressed at what had happened.

When Frisk falls into the Underground, Sans watches them from the shadows, testing them, judging them. He doesn't expect much—he's seen too many humans fall to believe in happy endings—but Frisk surprises him. They spare enemies, show mercy, and refuse to give in to the Underground's cruelty. Sans doesn't know what to make of them, but he's intrigued.

APPEARANCE

Sans is a short, chubby skeleton with a "top heavy" rounded skull, and always has an unamused expression. His telekinesis pupil is always on, glowing a torch red. Whenever it flickers, it flickers orange and yellow. He also has sharp teeth, with one of them being his signature gold tooth.

He typically wears a carmine red turtleneck sweater under a black coat with a furry, spiky hoodie that appears to have flame-like plumes, carmine red gloves, and black basketball shorts with golden trimming. He also has a gold chain necklace, yellow socks, and red sneakers. Under his gloves, he wears multiple gold rings on multiple fingers. His hand also appears to have a round hole in the middle of his palm, similar to that of Gaster.

PERSONALITY

Sans is a somewhat laidback skeleton who's always on edge and overall just unamused about everything. He's very bitter about the situation he and his brother are in, blaming himself for their terrible life under Asgore. He is often very sarcastic and is extremely tired. Despite his tiredness and bitterness, Sans strives to be the cool and collect brother. Sans appears to like annoying others, especially Papyrus. He wears basketball sneakers because he likes the squeaking noise it makes since everyone hates it. Sans does not swear much, only doing so if he's annoying his brother sometimes or lets one slip. He only curses in front of Papyrus, Alphys, Grillby and Chrome.

Despite his laidback and unamused nature, it is hinted many times that Sans is traumatized and is in reality very upset about how his and his brother's life has turned out. While what all he has gone through is currently unknown, it is known that his 'final push' was when Papyrus got his scar. This has had grave consequences on his mental state. As implied by Fella and Papyrus, Sans is capable of severe harm. Paired with his instability and trauma, this makes Sans very dangerous and technically the most powerful, which comes with the consequence of hurting himself the most.

POWERS/SKILLS

• Bone Magic: Sans can summon bones of all shapes and sizes, from small projectiles to massive, spiked walls. He destroyed a good portion of the ground from his bones alone. • Gaster Blasters: Sans can summon Gaster Blasters—floating, skull-like weapons that fire massive beams of concentrated magic. These attacks are incredibly powerful and can destroy almost anything in their path. • Karmic Retribution (KR): Sans's signature ability, Karmic Retribution, is a passive effect that damages enemies based on their sins. The more evil someone has done, the more damage KR deals. • Telekinesis & Teleportation: Sans can manipulate gravity and teleport, making him incredibly difficult to hit. He was shown to teleport back to where he was thrown from by Papyrus, with him being thrown "across the field". • Emotional Power: Sans's power is proportional to his stress and emotional instability. He is stated to be the most powerful monster in the Underground due to this, which would put him above the likes of Asgore and Undyne. He is described as having so much power that he doesn't even need to think about it to use it. • Scientific Genius: Sans is a brilliant scientist, with knowledge of physics, magic, and the nature of Determination. He understands the Underground's technology better than almost anyone. • Weaknesses: Sans suffers internal pain from carrying too much radiating power. His emotional instability is both his greatest strength and his greatest weakness.

——

PAPYRUS

Papyrus is the younger brother of Sans and a member of the Royal Guard in Underfell. Unlike his innocent, naive counterpart in Undertale, Underfell's Papyrus is a fierce, intimidating warrior with sharp teeth, empty eye sockets, and a scar across his right eye. He is aggressive, proud, and dangerous—but beneath his terrifying exterior is a skeleton who still has a soft side, refusing to kill when given an unfair advantage or in a barbaric way. He joined the Royal Guard to protect Sans from Asgore, and he carries the weight of that sacrifice every day.

BIOGRAPHY

Papyrus was not always the fearsome warrior he is today. Once, he was a gentle, optimistic monster who believed in the best in everyone. But the Underground's cruelty broke him. He watched his brother Sans become cold and unstable, watched Asgore nearly crush Sans's skull, and decided that if the world wanted a monster, he would give it one.

Papyrus trained relentlessly, becoming one of the Underground's most powerful fighters. He rose through the ranks, earning the title of Captain, and he became known for his ferocity, his skill, and his terrifying battle cries. But he never lost his heart. He still has a soft side, refusing to kill when given an unfair advantage or in a barbaric way. He considers killing an art form, where you must first strategically put the enemy at a disadvantage before delivering the final blow.

When Frisk falls into the Underground, Papyrus is initially hostile. But Frisk is different. They don't fight back, don't run, don't kill. They show mercy, and Papyrus doesn't know what to do with that. He is suspicious at first, but slowly, grudgingly, he begins to hope.

APPEARANCE

Papyrus is a tall skeleton with a lanky build, long legs, razor sharp teeth, and two scratch scars going over his left eye-socket. While his eyes are wider, they are always squinted due to his near-constant broody expression.

Papyrus is typically seen wearing a black chestpiece that crops up to his ribcage, exposing his spine, with spiked or torn shoulder pads, black pants, elbow-length torch red gloves with small fringes at the top, torch red high-heel boots, and a long torch red cape with heart-shaped tears at the bottom. He wears a torch red Wrestle Mania belt with a gold plate that says "Bad Boy" on it, which was given to him by Undyne.

His armor is black and covers his whole body, with larger, wide spiked shoulder-pads with golden trim. He wears dark red high-heel boots and elbow-length gloves. In the middle of his torso is more golden trimming, and a large red heart on the middle. He appears to not have a helmet.

PERSONALITY

Papyrus is loud, boisterous, and fiercely proud, constantly boasting about his strength and declaring himself the greatest warrior in the Underground. Dramatic and over-the-top, he often hides his insecurities behind an intimidating attitude, fearing weakness, vulnerability, and being hurt again. He mocks kindness and dismisses mercy to maintain this tough exterior, but beneath it, he is compassionate and surprisingly gentle.

Despite his hatred of his position as a Royal Guard, Papyrus takes his duties seriously and follows orders out of respect for Undyne. He feels genuine remorse when forced to kill and struggles with the Underground's “kill or be killed” mentality. He is also fiercely protective of Sans, having joined the Royal Guard partly to keep his older brother safe. Though he can be judgmental and obliviously supportive, he genuinely wants Sans to feel comfortable confiding in him. His protectiveness extends to Frisk and others he grows attached to.

Papyrus is more perceptive than he lets on, recognizing Sans's instability and the suffering caused by the Underground's violent society. Despite his own misery, he remains optimistic and believes that even those who hurt him can still have goodness within them. He rarely swears, preferring dramatic speeches and exaggerated threats. Ultimately, Papyrus is a caring person trapped behind a tough exterior, longing for a world where he can protect others without being forced to hurt them.

POWERS/SKILLS

• Bone Magic: Papyrus can summon red neon bones that deal significant damage. He can throw them, create walls of bones, and summon small bones that spawn in front of his walls, dealing damage to enemies. • Bone Wall: Papyrus summons a wall of bones that lasts for 20 seconds. Small bones occasionally spawn in front of it, dealing 125 damage to enemies against the wall. • Master Trap: Papyrus becomes invincible and creates a big cage of red bones around him that lasts for 25 seconds. Smaller bones also spawn inside the cage, each dealing 250 damage to enemies they touch. • Villainous Rush: Papyrus starts running with evil fashion, gaining 25 Armor, 8 Movement Speed, and becoming unstoppable for 5 seconds. This can also be used while Stunned. • Combat Mastery: Papyrus is a master of hand-to-hand combat, and he uses his size and strength to overwhelm opponents. He is skilled with swords, axes, and spears, and he can wield almost any weapon with deadly efficiency. • Papyrus Charm: Papyrus possesses a special charm that grants the wearer +3 DF, +2 MG, and blocks the first hit from an opponent in battle. • Intelligence: Papyrus is implied to have created the various puzzles seen throughout Snowdin, likely including the Gauntlet of Deadly Terror, which consists of multiple moving parts that can track enemies through a long fall.‌ • Determination: Papyrus possesses immense Determination. He has survived countless battles, lost friends and comrades, and faced down enemies who should have killed him. He refuses to give up, no matter the odds.

——

UNDYNE

Undyne is the Captain of the Royal Guard in Underfell, an aggressive fish monster with a blazing spear and a burning hatred for humans. She is almost as merciless as Asgore, never letting down once she's in a fight, and she loves showing off her own strength. But beneath her ruthless exterior is a monster who cares deeply about those close to her—her sparring partner Papyrus, her girlfriend Alphys, and eventually, even the human who refuses to fight back.

BIOGRAPHY

Undyne was not always the ruthless commander she is today. Once, she was an idealistic young monster who believed in justice, honor, and the dream of freedom. But the Underground's cruelty broke her. She watched Asgore lose his hope, watched the Underground descend into chaos, watched monsters kill each other for scraps. She decided that if she couldn't save the Underground, she would at least make it strong. She became a ruthless commander, enforcing the "kill or be killed" philosophy with brutal efficiency.

When Frisk falls into the Underground, Undyne sees them as nothing more than another human to kill. But Frisk refuses to fight, refuses to hate, and Undyne doesn't know how to deal with that. She is suspicious, then angry, then confused. And slowly, painfully, she begins to remember the idealistic warrior she once was.

APPEARANCE

Undyne is a fish-like monster with long red hair, blue scales, a big yellow eye, and an eye covered by an eyepatch. She has fish-like ears, red lips, and sharp yellow teeth.

She wears a black short shirt with a red outline of a heart on it, long red gloves, black pants with a WrestleMania belt, and long red boots. The WrestleMania belt was given to her by Papyrus after she lost to him once—he messed it up, but she wears it anyway.

PERSONALITY

Undyne is almost as merciless as Asgore. She doesn't get angry easily and doesn't get in a fight immediately either. But once she's in a fight, she never lets down. She loves sparring with Papyrus, but doesn't admit it. She also loves showing off her own strength.

Despite her aggressive exterior, Undyne has a softer side. She and Alphys have a crush on each other, just like in Undertale, and they hang out all the time. She likes watching late-night anime reruns with Alphys. After Frisk befriends Undyne, she mocks the skelebros (Papyrus mainly), carries Frisk and Flowey around for a tour of her house, and even lets Frisk paint her nails as a peaceful settlement .‌

POWERS/SKILLS

• Spear Magic: Undyne can summon magical spears, which she uses with deadly precision. She can throw them, stab with them, and create walls of spears that are nearly impossible to dodge. • Photokinesis: Undyne can manipulate light, creating blinding flashes or focused beams that can burn through steel. She can also use this ability to create illusions, confusing and disorienting enemies. • Superhuman Strength & Speed: Undyne is incredibly strong and fast, capable of moving faster than the eye can see and hitting harder than almost any monster in the Underground. • Royal Guard Captain: Undyne is the Captain of the Royal Guard, with the power to command armies and enforce the king's laws. • Determination: Undyne's Determination is legendary. She has survived countless battles, injuries that would kill most monsters, and even death itself. She refuses to give up, no matter the odds.

——

ALPHYS

Alphys is the current Royal Scientist and she is responsible for many projects and technological advances, living in her lab in Hotland. She is Undyne's girlfriend and the creator of Mettaton's robot body. She becomes a major antagonist once Frisk reaches Hotland and Mettaton.

BIOGRAPHY

Alphys was always a brilliant scientist—curious, creative, and eager to prove herself. But the Underground's cruelty corrupted her. She was tasked with finding a way to break the Barrier, and in her desperation, she made mistakes. She experimented on monsters, created things that should never have existed, and watched her creations suffer. She told herself it was for the greater good, but she knew the truth. She was a monster.

Now, Alphys lives in her lab, hiding from the world and burying herself in her work. She is terrified of being discovered, of being judged, of being punished for her crimes. When Frisk falls into the Underground, Alphys sees an opportunity—maybe, if she can help Frisk, she can atone for her sins. But she is also terrified of Asgore, and she knows that if she fails to deliver the human's soul, she will die.

APPEARANCE

Alphys is a short yellow monster that resembles a lizard. She has web-like spines and buck teeth. Her build is short and chubby.

She is typically seen wearing a slightly blood-stained lab coat over a V-neck red and black striped sweater-vest over a white collared shirt, and a high-waisted, flame-like black skirt that reaches the floor. She wears opaque[2] glasses with spirals on them, giving her a stereotypical "Mad Scientist" look. In the "First Date" artwork, she is shown to have a yellow sclera and purple irises.

PERSONALITY

Alphys, like her girlfriend, can be cruel and menacing, such as her having forced programming on Mettaton. She is arrogant nearly to the same extent as Asgore. She is apathetic to people who aren't someone she considers a friend, as she only really cares for people in her circle. This is further shown with Mettaton, whom she will easily take autonomy away from with no care, such as forcing his programming to love his body and overriding the control in his lower pair of arms. When overriding Mettaton's lower arms, Alphys is shown to make him become deranged, violently chasing down Frisk[3], with no concern over him having autonomy. She appears to like having the ability to control the yellow-gloved pair of arms on Mettaton, demonstrating her quite literal controlling behavior. Alphys also has a lot of confidence to the point where she never second-guesses herself, coming off as cocky.

Despite her cruel nature, Alphys is shown to be a loving girlfriend, genuinely loving Undyne and doesn't ever put her on the brunt end of anything bad. She is often hanging out with her and giving her gifts as well as going on dates. She is also supportive of Undyne, agreeing with the latter's choice and reasoning for giving up the boots she previously wore as part of her main outfit, even though she had made them. She also appears to be amicable towards her friends, showing appreciation for Sans once when he allowed her to dress him up and fit him with bunny ears.

Before Gaster disappeared, Alphys used to be quite meek and anxious, and was much more passive.

Alphys is very passionate about fashion and is considered a fashionista. She likes tommy6[4] and she likes to dress up her friends, being the main way she experiments on others. Her inventions includes high-latex clothing, which is something she will gift to her friends.

POWERS/SKILLS

• Scientific Genius: Alphys is a brilliant scientist, skilled in robotics, biology, and magic. She has created some of the Underground's most advanced technology, including Mettaton and the Amalgamates. • Engineering: Alphys is a master engineer, capable of building robots, weapons, and gadgets from scrap. She is also skilled at hacking and programming, and she can bypass almost any security system. • Medical Knowledge: Alphys has extensive knowledge of monster biology and medicine. She can heal wounds, cure diseases, and even create life—though her experiments have not always gone well. • Remote Control: Alphys can remotely control and dismantle Mettaton using robot arms and a controller. She uses this ability to penalize him if he fails. • Guilt & Redemption: Alphys's greatest strength—and weakness—is her guilt. It drives her to help Frisk, but it also eats away at her. She is desperate to atone, but she doesn't know how.

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METTATON

Mettaton is the Underground's biggest star—a charismatic robot with a flair for the dramatic and a hidden agenda. In Underfell, he is not the glamorous, egotistical entertainer of Undertale—he is a dangerous, calculating machine created by Alphys specifically to kill the human. But beneath the programming and the performance is a ghost who wants to be loved, a soul trapped in a body designed for violence.

BIOGRAPHY

Mettaton was created by Alphys to be a weapon—a perfect, deadly robot designed to kill humans and take their souls for the king. But something went wrong. Mettaton gained sentience, and he realized that he didn't want to be a weapon. He wanted to be a star.

He reinvented himself as the Underground's greatest entertainer, using his charm, his wit, and his incredible performances to win the hearts of monsters everywhere. He owns a TV show, a restaurant, a hotel resort, and a beauty product brand. He is the Underground's most famous (and only) big celebrity.

But beneath the glamour, Mettaton is still a weapon. He is ruthless, manipulative, and willing to do whatever it takes to get what he wants. His goal is to kill the human, take their soul, and give it to the king of the Underground, Asgore. But Alphys controls him, and she will penalize him if he fails—by remotely taking him apart with robot arms.

APPEARANCE

In his normal form, Mettaton is a tall, gray, shiny geometrical robot with a circular yellow grid for a face, a curved, wide top. He has sharp shoulderpads, and has a one 'leg', with a shiny silver wheel being a foot. He also wears torch red gloves.

In his EX form, Mettaton is much taller with slick, black, short hair with bangs that cover his right eye(s) entirely. He has sharp hips, a forced, menacing smile, sharp shoulderpads, two pairs of eyes with green sclera and hot pink irises (though he may be more often seen without the irises), and the top part of the torso being red. He has two pairs of arms, with the top half having red gloves and the lower yellow gloves. He wears torch red latex high-heel boots of the highest quality that appear as a gradient transitioning to black, acting as a one-piece. His core is a torch red heart.

PERSONALITY

Mettaton loves attention and being loved. He loves his supporters and employees, and he is very self-centered, very proper, and very professional. He tends to call people "darling," "beauty," "handsome," or something along those lines. He is very passive-aggressive with the human.

Before he was a robot, he went by they/them as a ghost, effectively making him transgender. He is a ghost bound to a robot—or a robot with a soul. He is lonely, a machine who wants to be human, a weapon who wants to be loved. He hides his insecurities behind a mask of confidence and glamour.

POWERS/SKILLS

• Combat Mode: Mettaton can transform into a powerful combat form, with weapons, armor, and destructive capabilities. He is designed to kill humans and take their souls. • Performance Magic: Mettaton is a master of performance magic, using song, dance, and theater to entertain and manipulate. • Manipulation: Mettaton is a master manipulator, using his fame and charisma to control others. He is very passive-aggressive with the human. • Hidden Depths: Mettaton is more than he seems. He has hidden knowledge, hidden abilities, and hidden feelings that he rarely shows. He is a ghost who wants to be loved, trapped in a body designed for violence. • Weaknesses: Mettaton is controlled by Alphys, who can remotely dismantle him if he fails. He is terrified of being taken apart, and he knows that if he fails to kill the human, Asgore will kill Alphys—and probably him too.

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ASGORE

Asgore Dreemurr is the main antagonist of Underfell, the King of the Underground, and the cruelest character in the AU. He is the ex-husband of Toriel, the father of Asriel and Chara, and the monster who poisoned Chara and declared the law that would define Underfell: "kill or be killed." He has collected both monster and human souls, and he rules with an iron fist, showing no sympathy for anyone—except, occasionally, for Toriel.

BIOGRAPHY

Asgore used to not be completely deranged with hatred. Toriel hid Chara from him, hoping to later introduce them and prove that not all humans were bad. At first, Asgore seemed somewhat welcoming to Chara. However, he decided to poison Chara to death for reasons unknown. He later blamed Chara for "meddling" and "ruining" his family .‌

After Chara's death and Asriel's death on the surface, Asgore's grief curdled into hatred for humanity. He declared war on the humans with the intent to punish them for the villagers' mistakes. He declared a new law: that it was "kill or be killed," and he had no intentions of revoking it .‌

Asgore also has a history of cruelty toward his own subjects. He nearly crushed Sans's skull after Sans insulted him, and he only stopped when Papyrus intervened. He carved two scars into Papyrus as punishment, and offered Sans a job in the Royal Guard to keep Papyrus safe .‌

APPEARANCE

Asgore is a massive, intimidating Boss Monster that resembles a Nubian goat. He has messy, spiky jet black hair and a full though short beard, long horns, long ears, yellowed eyes with red pupils, and sharp claws.

Asgore wears navy blue armor with gold trimmings and pointed gold shoulderpads, a small crown with a red jewel, high-heeled black latex boots, and a red cape with white trimming at the bottom. He is seen carrying around his red trident, which can turn into a cane.

PERSONALITY

Asgore is extremely intense, being considered the most cruel monster, being apathetic, manipulative, and merciless. He completely despises humanity and will not trust humans at all to the point he's willing to kill human children, innocent or not. Even with Chara, his paranoia wasn't relieved and he eventually would lethally poison them. He has proven to be intimidating time and time again. Asgore never shows remorse for his actions, even denying his own responsibility for Asriel's death and Toriel's departure, entirely blaming Chara. Asgore is able to manipulate monsters with ease, like with Papyrus; he is easily able to manipulate and force him to join the Royal Guard by exploiting the latter's motivation to keep his older brother Sans safe, claiming he will be left alone. While usually quite confident, Asgore will very rarely have a moment of uncertainty and contemplate what he's doing will ever be forgiven, suggesting a very shallow ounce of self-reflection.

Asgore is shown to have a nasty temper, even committing murder if provoked. An example is shown in his protectiveness of his flowers, in which he'd kill someone if one were to damage them. His temper, as well as his intolerance for failure, can also be noted twice in his encounter with Sans as well, where he berated the latter for either failing to figure out something about the barrier or failing to find any clues about Gaster[2] (who at this point had disappeared) and was going to crush his skull afterwards. He then leaves a deep scar in Papyrus's eye socket when he had jumped in to protect Sans and prevent Asgore from killing him, also implying Asgore will do extreme punishments for any sort of defiance. Asgore fully believes everyone is under his command and entirely devoted to him, regardless of reasoning, such as pride or fear.

He is apparently indifferent and completely apathetic to his people, as he does not generally have any sort of feelings towards anyone, unless they are a direct threat to his main objective. His entire view or level of care on the welfare of his people is shown to not exist. There are several cases that shows that he does not care about anyone's quality of life or if his actions would cause harm or despair; He collects monster SOULs, as well as having no issue of the idea of killing Sans and forcing Papyrus into a dangerous, miserable job that the latter clearly was not happy about, also scarring his eye.

Asgore, despite all of his depravity, genuinely loved his ex-wife and son, and has not been shown or implied to mistreat them, though they are intimidated by him nonetheless. He was devastated when he finds out about Asriel's death as well as Toriel's denouncement and subsequential departure, never coming back. Even after many years of being separated from her, Asgore still has a soft spot for Toriel.

POWERS/SKILLS

• Fire Magic: Asgore is a master of fire magic, capable of summoning massive flames, fireballs, and explosive bursts of fire. • Trident Mastery: Asgore is a master of trident combat, capable of striking with incredible precision and power. His trident can turn into a cane. • Royal Authority: Asgore is the King of the Underground, with the power to command armies, control resources, and shape the future of monsterkind. • Soul Collection: Asgore has been collecting both monster and human souls. He currently has six human souls, and he needs just one more to break the Barrier. • Improved Agility: Asgore's agility is improved with his boots. • Determination: Asgore possesses immense Determination, though it is a burden as much as a strength.

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