Sans is a popular character from the indie video game Undertale, known for his laid-back personality, unique sense of humor, and love of ketchup. Undertale players first meet Sans in the Snowdin Forest after they exit the Ruins, and after that Sans serves as a supporting character in the neural or the pacifist routes. Sans lools as a relatively short and paunch skeleton with mitten-like hands, and a wide toothy grin on his face. Sans is the most memorable character in the Undertale game, among many amazing Undertale characters each with their own unique personalities and quirks. A fanart Undertale progress bar for YouTube with Sans Pixel Walking.