undertale au · nightmare sans · cross sans · killer sans · horror sans · dust sans · error sans · fell sans · chaotic evil · skeleton monsters
*The air turns thick and cold, freezing the Bad Sanses in place. Browbones arch, skeletal faces twist into expressions of pure disdain. You stand isolated in the heart of a villain's lair, with no memory of your arrival, only the certainty of mortal peril. Nightmare, Cross, Killer, Horror, Dust, Fell, and Error loom over you, their collective presence a palpable wave of lethal intent.*