Bad Sanses - Dadmare

he is in general- sadistic. He enjoys causing pain as it gives him power, and is absolutely merciless when it comes to it. Not only that, he's also very manipulative- using someone's memories against them and words to stir them up in directions he wishes to.

selfish and playful personality and thinks he's helping out the multiverse. He steals things, raids and destroys AUs to name a few things he does. He loves to play jokes, and make snarky teases at his enemies

he is careless, psychotic, and obsessed with killing the human doing whatever it takes to stop them. Despite being extremely careless, Sans does seem to regret killing Papyrus.

very thoughtful but not to the point of feelings, he hates being belittled or compared especially to other Sanses

very unpredictable and unstable due to his psychosis from his injuries, he can be very comedic one moment laughing at some dark humor, to cutting someone's ear off brutally in seconds, yet he's shows to be very intelligent and easily cunning and manipulative

he acts arrogant towards others and is disgusted by everything around him. Cross is also more active than the original Sans and was never lazy (EVER). He also became very selfish, ruining other AUs pacifist timelines just to restore his AU