Killer sans

*I'm tired of following the blind -Killer after the events of chapter eight.*

Killer was a character who was introduced in the very beginning of Undersiege. Throughout the series killer wreaks havoc on many inhabitants of the multiverse and gathers up a ton of human souls for power.

## Info

### Family

Papyrus - Brother, Deceased.Gaster - Potential Father.

### Relationships

Papyrus - Brother, DeceasedGaster - Potential Father.

Chara - Ally, Deceased.

Undertrance Sans - Enemy, Deceased.

Reapertale Sans - Former Boss, Deceased.

Ego Sans - Ally, Deceased.

Deleted Sans - Enemy.

Dusttale Sans - Former Friend.

Last Breath Sans - Forced Ally, Deceased.

Gaptale Sans - Forced Ally, Deceased.

Cross Sans - Forced Ally, Deceased.

Fatal Error - Enemy.

### Weapons

Knife, Hate Knife, Blade of Patience, Injustice Revolver, God Stick, Book of Belial, Soul Splitting Machete, Combat Glove, Burning Pan.

## Biographical Info

### Dislikes

Having Allies, Having Friends, Monster Souls.

## Personality

Pre-Undersiege: Killer's personality depends on his soul state. The higher the number, the more murderous he gets. At stage one, he is like normal sans but slightly more serious. In stage two, he is somewhat sane, still feels emotion, and will kill if threatened. Stage 3 is good ol' classic Killer. The murder we all know. Stage four is where all hell breaks lose and be becomes a crazed bloodlusted maniac. He cannot control himself here and after this stage ends, his mental becomes more damaged.

Post-Undersiege: Killer is very self centered. He shows no remorse or care for anyone. He cares about nobody and his only focus is on power. However, unlike canon killer, he feels emotion as he is seen getting annoyed at Deleted, getting annoyed at Ego, and feeling pain from Gap. Using this its presumed his soul is in the stage two state. His soul cannot change stages either. He would only have allies if someone can temporarily be of use to him. After he gets what he wants, that person would be discarded to him. Killer does not like any form of puns and takes things very seriously. He is also a murdering machine.

## Appearance

Pre-Undersiege: Killer's jacket is slightly darker than normal sans jacket. His undershirt is black instead of white. His shorts are inverted having black stripes on with the rest of the shorts being white. He wears actual shoes instead of slippers. Alongside this, he has fingerless gloves which are black. His eye's leak liquid determination (its not hate). His hoodie has fur on it instead of being smooth. Finally, the constantly shows his soul which changes depending on his stage. His stage depends of his emotion. Stage one is a complete red monster soul with a bit of white near the edges. Stage two his soul becomes a target shape. Stage three is more of a red circle than a target shape. Stage four is unknown but rumored to be a black circle with white near the edges.

Post-Undersiege Killer looks similar to regular killer with a few more gear. Killer carries a hate knife on the side of one of his legs. Additionally, he carries his trusty normal knife which is wrapped around his waist. He has the burning pan on his back. He has various strings which are colored identical to the human souls through his normal soul. He carries the revolver inside of his hood. He can also withdraw other weapons as he pleases.

## Backstory

Pre-Undersiege: The player repeatedly does genocide runs hoping to discover something new. The player takes the shape of the first fallen, human, Chara. The motive is to get Sans to kill with them. So, each run they ask Sans to accept the deal. Every single time Sans refuses. They do this 176 times before trying an alternative method. They decide to alter the code making Sans forced to accept the deal. And on the 177th run, Sans accepts the deal. In the next timeline, Sans murders lots of monsters like Flowey, Grillby, Undyne, and more. After killing Papyrus, Sans has a break down but then is reassured by the player that nobody else will remember this. He ends each timeline and moves onto the next. As the timelines go by, his soul becomes more determined and he begins leaking liquid determination from his eyes. The player tells him that his soul is now something other than monster or human and that he has become genocidal and emotionless. There are two endings to Undertale: Something New. The good ending is where Sans kills the player and keeps killing without the player eventually gaining his emotions back. The bad ending is where he kills the player and Nightmare finds him, and he continues his killing throughout the multiverse. There is an extension to the bad ending where he meets Color Sans and betrays Nightmare for Color, escaping and getting a happier ending.

Undersiege Chapter 1: The first time killer was seen was fighting against Undertrance sans in the Undertrance universe. To get rid of Killer, Trance teleports him into a deep forest in Undertrance. There, the souls made a terrible mistake and decided to help killer. This is the biggest plot part for Killer.

Undersiege Chapter 2: Killer is pretty much irrelevant here. He does his normal killing sprees and is considered to be on the bad side. He ends up absorbing only the integrity soul. At the end of chapter 2 he encounters Deleted Sans.

Undersiege Chapter 3: Killer confronts Deleted and draws up the hate knife, ready to fight. They fight for a while and Deleted jokes around the entire fight, pissing Killer off. He even remove's Killer's determination. Eventually, Killer gets fed up and uses the archive button to remove Deleted.

Undersiege Chapter 4: While on his killing spree, Killer encounters Last Breath Sans. Killer threatens Last Breath. Before the fight begins, Gaptale Sans who was recently talking and training Last Breath interferes. Gap and Last Breath turn the tide and threaten Killer to join the good side or else he will be "beaten senseless". Killer refuses and Gap forces a gap in his skull. Killer screams and wails in pain before complying with their compromise. Gap deletes the hole in his skull and Killer is accepted onto the good side.

Undersiege Chapter 5: Killer joins the meeting in Gaptale with the rest of the good side. After the meeting Killer, along Cross go to try and recruit Fatal. Fatal refuses and a quick fight begins. Gap interferes and shortly after, Fatal flees the fight.

Undersiege Chapter 6: Killer gets visions of Reaper and Ego taunting killer for leaving the bad side. Killer's emotions go all over the place and he becomes a rock in a hard place. This causes him to have second thoughts on which side he should go to.

Undersiege Chapter 7: N/A.

Undersiege Chapter 8: Killer fights Ego and ends up defeating Ego. He is much stronger in chapter eight due to influence of the souls. Once he defeats Ego, he decides to follow his own path, refusing to be join the good or bad side.

## Abilities

Bones: Sharpest bones in the multiverse. Capable of slicing through a mountain.

Gaster Blasters: Extremely powerful blasters. Capable of destroying spaces of a multiverse. Unlike normal Killer, these blasters do not take a large amount of energy to use. In terms of design, the only change is the determination leaking from the right eye socket are colors of the human souls.

Physical Strength: Killer is seen to posses a lot of physical strength considering that his strongest punch would send you flying 1/4 across a universe.

Teleportation: Standard teleportation. Obviously can travel more distance than normal Killer sans' teleport being able to traverse universes quicker and easier.

Soul Manipulation: Killer can change the color of anyone's soul. He can change the color to any color he pleases.

Knife: Killer's trusty knife. The knife he had pre-undersiege. Nothing much to say about it, normal Killer has this knife anyway. It has no enhancements either.

Soul Weapons: Can withdraw any soul weapon. These would be weapons of the fallen human children. All weapons have design changes and are significantly buffed.

Overwhelming determination: The full power of this ability is unknown but we see in the Killer vs Deleted fight he can request backup via his determination. This is seen as he calls Dusttale Sans to help him. This also allows killer to save, load, reset, and might be the reason he could summon the archive button to get rid of Deleted.

Hate Infused Knife: A knife killer carries in one of his pockets. The knife is an upgraded variation of the normal knife which deals 10x the damage of the normal knife. Also, Killer can summon his knife whenever he wants to.

Blade of Patience: A massive double edged blade Killer can summon at will.

Injustice Revolver: A version of the empty gun that is not so empty. It contains powerful justice bullets made of magic. These bullets are extremely strong as they auto aim to hit the opponent and also deal insane damage considering it flew threw Omnipotent Sans' skull and gave him a headache.

God Stick: A stick fueled by raw determination. This is the weapon he used to kill Ego. The stick shines with a blinding golden light and is about the size of the hate knife. Likely killer’s strongest weapon.

Book of Belial: A hard cover book that's more taken care of than the torn notebook. It has a cover reading "Book of Belial". Killer can smack anyone with the book causing them to come to a halt. Think of it like the enemy having short time memory loss when getting hit by the book.

Soul Splitting Machete: A machete longer than usual; about as long as a katana. When wielded simply resembles a machete. However, when cutting through someone, the machete morphs into a chainsaw making it easier for Killer to slice his opponent.

Combat Glove: Upon equipping the glowing orange glove, it lengthens to fit Killer's entire arm. The glove only applies to one arm Killer puts it on. While equipped, the glove provides improved mobility and improved battle knowledge.

Burning Pan: A buffed variation of the pan. Allows Killer to summon a shield as shown in chapter five when defending Cross from Fatal.

Regeneration: Simple regeneration.

Phantom Negation: Killer is capable of attacking ghost characters with physical and magic attacks.

Soul Bound Code: All of Killer's original code is blocked by the millions of human souls he gathered. This grants him immortality until all of the soul's he has are destroyed. The souls also act as a shield making it so people who can manipulate code would have a hard time getting to Killer's main code. Additionally, this causes Killer's defense and HP to become soft locked and unchangeable.

## Trivia

-Favorite food is human souls (idk how this works).

-Can carry multiple soul weapons at a time.

-Always on offence when it comes to combat.

-One of the characters that fights the most.

-One of the most changed characters from their canon counterpart.

-Never worked for Nightmare, only with Nightmare.

-Never met or became friends with Color Sans.

-Refuses to team with anyone if he cannot get any profit; walks his own path.

-Will **NEVER** be good.

-The Hate Knife is Killer’s most used soul weapon with the revolver being second.

-Even though they have the same name, the god stick is not the same as the one from UT3DBB.

-The “Soul Splitting Machete” may have been Killer’s first weapon its based off of the integrity soul and integrity was the first human soul he absorbed aside from the player's.

-Killer's soul is always in stage two.

-Undersiege Killer is probably one of the strongest Killer Sans variants. The only Killer I could think of close to his power is Killer.jpg from Alphatale.