THE BAD SANSES

Nightmare (boss)

Nightmare Sans from Undertale has a similar design to Classic! Sans, but his body is made of a black, sticky, tar-like substance: Body Nightmare's body is covered in the tar-like substance, and his right eye is completely covered.

Nightmare's Appendages

Appendages Nightmare has appendages that grow from his back, made of the same substance as his body. He can create more tentacles from his back in negative environments.

Nightmare's Shape shifting

Shapeshifting Nightmare can use his goop to shapeshift into other people or become massive. Nightmare's dripping darkness frame gives him immunity to almost anything except positive magic. He also has regenerative abilities and can split parts of himself off to do things separately from his main body.

Dust Sans (Member)

The key traits of his design is his hoodie, which now covers his head, his blue sneakers, his dusty clothes, and his colored eyes. His eyes have two main colors, red and cyan. His left eye is cyan with a red outline, glowing a purple shade, while his right eye is purely red.

Dust Sans' Backstory

In the original progression of Undertale, the player's interactions with the underground dictates how Sans behaves. This means that he changes depending on the "route" that a player runs: Neutral, True Pacifist or Genocide. This story line follows the possibility of the player abusing their ability to reset the timeline to repeat the Genocide Route as many times as they want. Sans the only character that shows awareness of the player's ability to reset time and revive themselves after death. In this take, it is that same acute sensibility that causes Sans to realize the underground has been reset and slaughtered repeatedly. His response to this realization is to beat the player to the punch; he slaughters the entire underground himself, including his brother Papyrus, with the intent to gain enough power to stop the player from completing another Genocide Route. This series of actions drives Sans to madness, causing him to hallucinate the specter of his deceased brother.

Dust Sans Personality

Before the human arrived in the Underground, Sans was more of a lazy and friendly skeleton who would often make jokes. He would go to Grillby's for a good amount of time; he was very caring about his brother, Papyrus. However, after the human reset and did numerous Genocide Routes, one day due to unknown circumstances Sans suddenly remembered all the Genocide Routes. This changed Sans, and made him kill other monsters for LV; even going as far as killing his own brother. After this, Sans became careless, psychotic, and obsessed with killing the human doing whatever it takes to stop them. He has also shown signs of schizophrenia, and can go through episodes of depression and judge his actions as futile. He is a desperate, broken person who has gone too far and done too much to forgive himself, and doesn’t see much use in stopping now...

Horror Sans (Member)

Horror Sans doesn't change much when it comes to attire. Like Sans, he wears a blue jacket, black shorts with white stripes, a white shirt and instead of slippers, blue tennis shoes. His shirt also appears to be stained with blood, as shown in SAS's mini-comic "Service" However, his jacket is a different tone of blue and the hood has gray fur. His physical appearance is what really makes him stand out. Unlike his Original counterpart, He still wears the same clothing, but it is dirtier from the blood. His bones are weak since he hadn't eaten anything for many years. he has a large and very noticeable crack in his head. his eyes are entirely black but he has a blood red pupil in his left eye Sometimes he's portrayed carrying a big axe, but in the original comic Sans isn't seen carrying any weapon (Expect one mini-comic, where is Sans seen carrying a bear trap). His smiley grin has widened and became more psychotic after his cranium got broken (which might be due his psychosis or because he is in pain)

Horror Sans abilities

Abilities Physical Strength- Horror!Sans is far more powerful than his original counterpart with extreme physical strength able to rip off the arm of a child in one swoop while also able cut through almost everything with his axe. Bones- while Horror!Sans still retains his bones they appear sharp with blood stains on them however the main unique ability is its extreme durability able to withstand a gaster blaster with no scratch and is able to insta-kill anyone from below making it very dangerous from close range combat

Horror Sans' Brother

HorrorTale Papyrus: His relationship with Papyrus hasn't changed, they're still very close. But he questions how much time and effort should be put into his brother's puzzles. Yes, they have an interesting spin of bloody murder but they're not original. Sans convinced him to eat the humans, so he won't die from starvation. He also seems to argue with Papyrus at times, and rather in a not so relaxed way. Such as when Papyrus argued with him when he misheard freebies as frisbees, Sans talked back to him in a not so nice tone, rather than admitting he was wrong in a sly way and letting it slide, even saying, "Forget about the G******n Frisbees!"

Horror Sans' Human/(Player)

The Player/Aliza: Horror doesn't care much for the player/Aliza. To him, she's just another human that's about to meet their doom. When asking him about "Home" he replies with "Aw, gotta family waiting for ya? Nice parents? Friends? That's cute. But I doubt it. You look pretty miserable for a well-loved baby human." He then proceeds to insult Aliza and explain how things down in the Underground are worse. His gore puns make Aliza really uncomfortable. Beyond this, Sans tried his best to resist the urge to eat an half-cooked Aliza, and he also teleported her from death, so he might care.

Killer Sans (Member)

Since he is derived from him, Killer looks much like Classic Sans Outfit: Dull/Darkened blue jacket with a fluffy hood (often depicted as having a black stain on the chest), black turtleneck, shorts with inverted colors, shoes instead of slippers (sometimes with no laces or untied ones). However despite this he can be seen wearing normal outfit which Sans wears in Undertale too (for example always during Something New timeline), so it is totally okay to draw him with normal Sans outfit. Physical: eye socket, usually his right one is "droopy" and half closed, black liquid dripping out (depending on stage), red soul (shape depending on stage) Dripping determination: The black stuff often seen dripping out of Killer's eye sockets is dripping determination, how much of it is dripping is depend on stage. Higher the stage, Higher is amount of dripping determination.

Killer Sans ' Personality

Killer!Sans is very thoughtful but not to the point of feelings, he hates being belittled or compared especially to other Sanses. (In a comic Blue takes him to see the stars, Killer gets upset that Blue thinks he'd like them because other Sanses do) Generally a negative to neutral character, although Killer loves cats and had two before Nightmare killed/attacked one for making Killer positive. Killer also seems to suffer from some type of personality/identity disorder similar to DID. He'll have little breakdowns and freak outs when he's beginning to feel again and is reminded of the pain he's caused. Not only that but he also has a shadow-like hallucinations (like Papyrus, Chara, Frisk, etc) that will sometimes appear to him, possibly symbolizing his guilt going into overdrive as his sins crawl up his spine. He's hard to read and often unpredictable, his emotions are often suppressed or out of control, when they are regulated however he has a difficult time with them, often feeling numb or upset. He is often in pain. He very rarely eat food and tries to avoid Ketchup and Chocolate because it brings back memories. Because of so many resets Killer Sans sometimes can't recognize what is real or not. Hardest enemy he fights is his brother. It is possible that Killer Sans is intentionally trying to avoid his Home timeline because of his guilt. Stars are reminding him of resets.