Killer!Sans

"YOU.... DON'T KNOW ANYTHING ABOUT ME!"
— Killer!Sans to Outertale!Sans when killing him.

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### Universe

Alternate Undertale Timeline
(Presumably, Something New)

### Theme

Occisor

**Killer!Sans** (Alias: **Killer**) is one of the antagonists of *Underverse*. He is currently one of Nightmare!Sans' servants.

## History

### Biography

He was once classic sans, in an endless cycle of genocide. but at some point, he had remembered the resets and route that His Frisk had done. Desperate to end the cycle, he encountered (His) Chara, who made a deal with him to kill every being in the underground, slowly becoming more homicidal, to the point where he took chara’s soul. Making him stronger, and giving him more determination than frisk. Without the save and load, frisk was killable. And when Sans’s timeline was completely destroyed by him. He Left, and murdered more timelines, but he encountered Nightmare!Sans. And Joined His Quest.

#### 0.4

Killer!Sans is spawned by Nightmare!Sans to replace Cross as X-Event!Chara's companion, He then haves a conversation with XTale!Chara about the events in 0.0, Shortly after that they enter Outertale.

Killer Is seen again when Outertale!Sans mistakes him for Ink, he then kills a random monster, after Outer sacrificed himself to save Classic!Sans, Killer then appears and then kills him, After error killed every living being in the universe and captured Underfell!Sans, Classic!Sans and Underswap!Sans, Killer along with Nightmare spectate the battle between Ink and Error, during the credits killer and nightmare are trying to kill dream but cross damages killer, they both escape to the The Omega Timeline, leaving nightmare and killer behind.

#### 0.6

Killer makes a return by attempting to slash dream, as the battle progresses killers weakens dream and pins him to the ground, meanwhile cross being controlled by XGaster breaks free and continues the fight with cross.

Following the Aftermath of the fight scene with nightmare, cross and dream, killer is covered with marks and gained a broken arm during his battle with xgaster, after that both nightmare and killer leave the omega timeline.

## Appearance

Killer!Sans looks significantly different than Classic!Sans. His jacket is colored slightly greyer than Classic Sans' jacket. Instead of having white cotton on his hood, it's a light yellow instead. He wears a black shirt with a turtleneck, and his red, target shaped soul is seen on the front. His shorts' colors are inverted from the normal black surface and white stripe to a white surface and a black stripe, and his slippers are replaced with sneakers the same color as his jacket. Killer!Sans' eyes are entirely black, and are dripping down to his chin, similar to the blue strings on Error!Sans' face. Though in Underverse 0.6, there are some points where his white pupils are visible.

## Personality

Killer!Sans has a psychotic, cocky, and hostile personality. He often kills monsters in his path, and usually has a child-like attitude when he “loses”. But he as well is very protective of his past, which is not heard (except by him) of in Underverse.

## Abilities

Killer!Sans's main weapon is a sharp knife that looks similar to a regular kitchen knife but with the proportions slightly different. He possesses the ability to teleport, which can be used to dodge attacks or to quickly escape from a fight. Killer!Sans can also summon bones that have especially sharp edges and can be used as melee weapons if needed. He also uses Gaster Blasters that can shoot laser beams like normal blasters, but also bite down on enemies. He can use telekinesis as well, like other Sans', to throw his opponent around.

## Gallery

Killer!Sans in Underverse 0.4Killer!Sans in Underverse 0.6Killer Sans with his pupils visible.