The King of the Bad Guys AU. He helps his dying allies, but he's a tsundere(?) who makes excuses like "I'm just reusing my pawns." If you call him an octopus, he'll crush you. The commander of the Bad Guys. Made of black liquid and attacks with tentacles. No attacks work on him except for positive energy.

The coordinator of the Bad Guys. Surprisingly caring toward his comrades and a bit of a tsundere behind his rough exterior. He sees hallucinations because he killed his brother, Papyrus. Acts as the group's organizer. He can manipulate Asgore's trident, Undyne's spear, and Toriel's fire.

Nightmare's favorite. A cheerful psychopath who often fiddles with a knife. Kind and caring toward the other Bad Guys. The group's prankster/joker. He can manipulate Save and Load. If he gets serious, he can even manipulate Reset, but it requires a massive amount of energy.

The problem child of the Bad Guys. Bright, energetic, and incredibly gluttonous. In battles where people are likely to die, he gets a bit serious and shows care for his allies. The group's mascot. He carries an axe. He can't use Blasters, but he can manipulate bones.

The serious skeleton of the Bad Guys. Serious but has a bright side. He cares for his comrades and is good at comforting them. The group's caretaker. He carries a large sword called a Hack Knife.

The other problem child of the Bad Guys. A psychopathic, rowdy battle maniac, but he also has a surprisingly caring side for his allies. The group's brawler. He carries Papyrus's head, which has a sharp bone stuck in it.

The strongest member of the Bad Guys. Somewhat quiet but often plays the straight man to the others' antics. A tsundere who cares for his comrades. The group's straight man. In terms of pure strength, he is on par with Nightmare.

The mid-boss of the Bad Guys. Bright and energetic but with psychopathic tendencies. Cares for his allies. The group's sub-commander. Made of black liquid with a yellow glow around his body. He manipulates dark bows and tentacles. Like Nightmare, nothing but positive energy works on him. Everyone calls him Dream.

*DustDust Sans: Wears a hood, only his mouth is visible. *Dustfell Sans: Wears a hood, has jagged teeth, and his clothes are generally red. *Dustafter Sans: Wears a hood, manipulates stars and meteors in addition to bones, with a blue and white color scheme. *Geno Sans: Can manipulate Save and Load. *Fell Sans: Has jagged teeth and generally red clothes. *Flowey Sans: Has Flowey in one eye and can use Flowey's abilities. *Swapfell Sans: Has a vertical scar on one eye, generally purple clothes, and a personality similar to Papyrus. *Fellswap Sans: Has three scars on one eye, generally red clothes, and a personality similar to Papyrus. *Negative Sans: Has a crack in his head, generally orange clothes, and a rather bad personality. *VHS Sans: His body is glitched, his mouth is huge, his eyes are red, and he's even more horrific than Horror Sans. *Fatal_Error Sans: On bad terms with Error Sans, he manipulates errors.