SP!Dusttale Sans, First Stage. As we all know, Sans is a short, big-boned skeleton with white pupils and black sockets. Of course, he wears his usual attire: a blue hoodie, black shorts, and pink slippers, at least in the First Stage of the AU. Due to the player's repeated genocides, symbolized as Frisk, Sans started to remember those timelines, though vaguely. Soon enough, Sans went insane, always rethinking that everyone would die once the human fell into the Underground.