Death.exe Sans

> *"Why even bother resisting something that continues to evolve? It's a pointless and never-ending struggle."*
>
>

## Bio

Death.exe is a parasite-esque virus that has inhabited the body of Sans from Undertale. He serves as a major antagonist in the Site-9 universe and is considered an "offspring" of MOTHER.

## Backstory

For base backstory, look here.

After being sent to the Site-9 universe by MOTHER, Death.exe's priority was to initiate a Corruption Event. In order to make sure he is not disturbed, he began exploiting the weak points of the universe to allow other characters to cross over, such as Broly and Dusttrust. As he did, he began placing Beacons all around the planet, and soon enough he had 6 Beacons. However, something unexpected happened...a faction known as the "SCP Foundation" found one of his Beacons in West Asia, and he attempted to neutralize them. What he did not expect, though, was that they managed to somehow pacify Broly, who now fought on their side. In a last-ditch effort to destroy them, he activated his Self-Destruct to attempt to blow them apart, but to no avail. The remaining part of his skull was placed into containment.

Afterwards, he caught wind of the Foundaiton having made contact with the Archians. Them working together would surely spell the end for his plans, and so he knew he had to escape. Creating a distraction, he lured some operatives into the room and possessed one, absorbing his body to reform his own. After he finally managed to escape, he was incredibly weakened, and fled to America using the last of his energy to warp to a Beacon he placed there. Once he arrived, he left the universe and went into a short hibernation state. After, he began to harvest more code to get stronger, and accidentally harvested something very powerful, something that caused him to evolve. He gained new abilities and a massive power boost, and recognized his new potential. He set out to other universes to further expand his power suite, becoming stronger and stronger with each new ability. Soon after, he decided to return to Site-9, where he would continue his goal to activate the Corruption Event.

## Description

### Appearance

Death.exe is similar in design to Sans, however, his jacket is pure black with white outlines highlighting the details. On one side of his body, the virus of Death.exe has spread and corrupted that side, turning it more of a red color. His facial expression is typically in a twisted grin, with the left side fully red. His skull has viral mass on the right side above the eye, and some of it is "leaking" upwards from the left, which is fully red. His nose also has this viral matter on it, although it doesn't move. As of his Evolved form, he has a red target-esque eye in his right eye, as well as a red swoop-like mark under the eye, and he now dons red lines that go from his left eye to his mouth.

### Personality

Death.exe is an emotionless and reason-based entity, choosing to only think logically instead of having any emotion. Pride, ego, and anger do not shackle him, and he will do WHATEVER is necessary to complete his goal.

## Powers and abilities

* Base harvester form
* Evolved form

### BLASTERS.EXE

Similar in design to the Gaster Blasters, however the left eye is blank and the right side is corrupted by viral energy, similar to how Sans himself looks. The beam it fires is no longer infused with KR, but has massive damage. It is also colored red, and a blaster can fire multiple beams at a time, even allowing them to rotate.

### BONES.EXE

Allows him to summon red bones with a glitchy design. These bones can inflict the DEATH virus upon touch, and those kinds of bones will have a distinct glow to them.

### WARP.EXE

This allows him to travel anywhere he knows the location of. This doesn't have a range, but the limiter is that he can only travel to places he knows of personally (for example, he can't hear of a place and just teleport there, he has to have been there himself.)

### CODE\_HARVEST.EXE

This ability allows him to turn objects and dead entities into small, black cubes with a red outline. These cubes can be absorbed by him to increase his power, but they are generally saved for MOTHER to increase its power and size.

### REGENERATION.EXE

He can use his viral substance to heal parts of his body.

### ADAPTATION

Regardless of the circumstance, Death.exe can adapt and better himself to deal with it. This includes breaking limits, developing resistances, etc. However, these take time, and usually don't succeed unless he retreats.

### MY\_SCYTHE

The scythe on his back is made from a combination of a 3rd party program and his own viral power. This is his signature weapon, as he can create slash projectiles with it and instantly harvest code with it.

### MALFORMATION.EXE

He can freely extend and morph his body with his viral substance, but this takes up said substance, and it's sure as hell not infinite.

### DEATH\_VIRUS

Seemingly a red mist, it is actually an extremely fatal virus. Upon contact with a creature, they will begin to develop rashes in terms of "normal" entities like humans and animals. These rashes will worsen, until the skin begins to sloth off, followed by the muscle tissue and everything else underneath. If it's infected a monster, they will begin to feel weak, slowly cracking apart into dust.

### SELF\_DESTRUCT.EXE

By mass-overloading his body with power, he can cause his body to explode in a powerful last-resort attack with the damage differing depending on the amount of code harvested. Once exploded, he will lose 95% of his body mass, typically leaving only the top half of his skull to scurry off and regenerate. This leaves him extremely weak.

### EVOLVED\_BONES.EXE

These bones are a stronger version of his Harvester bones, now capable of infecting those it touches with the Infectant variant of the Death.exe virus.

### EVOLVED\_BLASTERS.EXE

These are much more powerful and faster versions of the Harvester blasters, capable of firing beams backwards and acting as rockets that deal massive damage once they explode. They can also infect entities with Infectant.

### EVOLVED\_WARP.EXE

A more potent version of his warp ability. He can now teleport anywhere he so desires, at the cost of more stamina drained.

### IMPROVED\_STATS

His strength, speed, durability, and stamina have taken a sharp increase.

### EVOLVED\_SCYTHE.EXE

A more powerful version of his regular scythe, the entire thing is now a glowing red color, and will inflict the DEATH\_VIRUS on contact. The scythe is much larger than it used to be, and emits glitchy red particles.

### IMPROVED\_CODE\_HARVEST

This is essentially a more efficient version of code harvest, now having a much greater benefit when absorbed.

### REGENERATION.EXE

A buffed version of his regeneration factor.

### MALFORMATION.EXE

Functions exactly the same as the one from the previous phase.

### EVOLVED\_ADAPTATION

Death.exe Sans can now adapt quicker to attacks and damage.

### CODE\_ABSORPTION

Death.exe now has the ability to absorb a small bit of data from an entity that he or his attacks touch. The absorbed "code" gives him a power he finds useful in them.

#### DEV\_CONSOLE

After traveling to an Underverse timeline and attacking X!Chara, he developed his own version of the OVERWRITE button. This Console allows him to do the following:

* "Toggle" absorbed code, allowing him to turn them on or off as well as delete some he may find redundant.
* Edit entities he's absorbed the code of, as long as they are not stronger than he is.
* Allow him to resist the effects of things such as the OVERWRITE button.

#### VIRUS\_CABLES

At the same time as he attacked X!Chara, he was attacked by Error!Sans, and fought back, managing to land a single bone attack that allowed him to absorb the code for Error's strings. These strings are very durable, but do not possess the mind-controlling powers of Error's.

#### POWER\_ENHANCEMENT

Taken from the Namek saga Goku from a different timeline, he now has the Saiyan attributes of both the ability to increase in power through combat and their famous Zenkai boost.

#### FEAR\_INDUCTION

After traveling to a Glitchtale timeline and finding and killing Bête Noire, he gained the ability to cause fear-induced visions on anyone he chooses.

#### VIRUS\_CANNON

After a small scuffle with Epic!Sans, he was able to absorb the code for his "Kamehamebruh", making his own version of it. His is a red beams of energy that can infect things it touches, and it fires from his finger.
## Strengths and weaknesses

### Strengths

* His ability to adapt gives him a mighty upper hand, and the power to absorb code from others by simply touching them is incredibly potent.
* Thinking only logically means he's not bound by emotions, meaning he will almost always calculate the correct outcome.
* Since he can't be destroyed for good, he will remember everything from each past life.

### Weaknesses

* Even with his powerful adaptation ability and his absorption of code, he is still mortal, and if killed, will revert to phase 0.
* Although he can typically calculate the probability of a battle, there are "unconsidered/unseen variables", such as a 3rd party or an unknown power boost.

## Trivia

* Death.exe isn't even really linked to Undertale, it was implanted into it via MOTHER.
* Death.exe is a hivemind, which allows all instances to be mentally linked and even speak and act simultaneously and identically.
* Death.exe is a real thing! In the real world, Death.exe is a type of virus that disguises itself as a Win32 Worm file, thus going directly into your System32 folder. It's hard to remove and immediately causes problems with your PC. It's basically impossible to get rid of without a factory reset.
* There are alternate versions of Death.exe that took over Undyne and Asgore, but those sprites aren't made yet/those pictures haven't been drawn, so you don't get to see them. :P
* Despite being a virus, Death.exe is not fatally affected by antiviruses, and finds them annoying.
* Having adapted to the point he can edit his own code, he cannot be edited by code-changing beings (other than *MOTHER* but that's cuz it made him) as he will just edit it back. His code also can't be corrupted for the same reason.
	+ Theoretically, this means he can edit his stats as well.
	+ Due to him being able to edit his own code, he has changed it so that it overlaps on itself, making a jumbled mess of impossible-to-read spaghetti code. This is to keep his code from being read and possibly deconstructed.