Sans is one of the major characters in the amazing Undertale videogame. He serves a supporting role in neutral and true pacifist routes, and a boss in genocide gameplay route. Sans is a short, paunchy skeleton with a toothy grin on his face. He is laidback and flippant, taking breaks often, and sometimes even sleeping on a job. Sans has a brother Papyrus, who enjoys capturing humans, unlike Sans. A fanart Undertale progress bar for YouTube with Sans.