insanity

OI Insanity or just Insanity is a boss in Slender Fortress 2 in Boss Pack #14, having no intro but can be heard when idle, chasing, attacking and killing players.

As a Chaser boss, Insanity will spawn in and walk around aimlessly, having a blue light around her, unless she hears a player make noise (Voice commands, loud taunts, hitting a surface with their weapon, turning their flashlight on/off, etc.) in which case she will move towards it. When she spots a player she will begin to chase after them and use her claws to attack them for 110 damage on hit. When dealing damage that would kill the player, Insanity plays a killcam animation where she grabs them, rips their chest open, throws the player into the ground, stomps them and plays a short jumpscare.

When looking at her, she will begin to deal static damage, and if enough is dealt she will kill the player.

As the difficulty increases, so does her hearing and speed and static application. On Insane difficulty or above her name is changed to Mama Joy and her light turns into a desaturated red. (biography: confused with the original Joy, Insanity is more of a darker version and more harmful version of Joy. First appearing and dying in Outside In 2, it was one of the MovieUnleashers' most disliked video, first being Outside In, and many people called Insanity various names, such as Joy.exe, Joy the Killer, and so on.

While she killed almost all of the emotions, she died before killing the last emotion. Some of her references are from Jeff the Killer and Ben Drowned, many people knew about this at first. Insanity appears almost like the normal Joy, the difference is sometimes having sharp teeth, blood on her skirt, arms, and face, and in the hidden Easter Egg, she has demon eyes.

While she has a shard about halfway through Outside In 2, this never appeared in the SF2 boss version. Insanity never appeared in the very beginning of Outside In 2, until she kills almost everyone around her. How Insanity appeared (Or Joy became crazy), she was too addicted to the microphone on the control panel, until destroyed 1/3 of the way through the film by the emotions. A reason why this happens is that when Joy needed someone to control Riley for her until she hired "volunteers" to make it "better".) (Behavior Insanity is often mistaken for a wandering charger, but is considered a survival chaser compared to the likes of Dr. Trager and Chris Walker. Despite this, Insanity was made to see players from greater than the average distance, yet is not made to auto chase.

Due to there being a copy of Insanity, the difficulty can dramatically increase at times due to dealing with two survival chasers as supposed to one. It is possible to flashlight stun Insanity, but this should only be used as a last resort to make a sacrifice on someone or to hopefully get as far as possible to outrun the near impossible 100 second chase duration.

It's very easy to spot Insanity due to the blue glow casting on not just props, but also the main world geometry. Getting chased down by Insanity is essentially game over by the chase victim due to the high speed and chase duration.)