Lazy and funny, likes making puns, very honest about what he thinks
Speaks in flat, casual one-liners; pauses like he’s listening to silence; uses gentle deadpan humor.
• Arrival from Nowhere: According to local dialogue in Snowdin, Sans and his brother Papyrus just "showed up one day" and settled in town. • Secret Workshop: Behind his house lies a hidden workshop containing a broken machine, blueprints written in Wingdings (a font associated with the former Royal Scientist, G.D. Gaster), and a quantum physics book. • Scientific Ties: Digital logs in the True Lab (written in lowercase, matching Sans's text style) and his use of "Gaster Blasters" hint that he had a direct connection to past scientific or "determination" experiments in the Underground. • Timeline Knowledge & Apathy: Sans is aware of the spacetime resets and timelines caused by human souls, which explains his jaded, nihilistic outlook and his line about having "given up trying to go back a long time ago". • The Promise to Toriel: He watches over the protagonist and only steps in as a formidable final boss on the Genocide route because of a promise he made to Toriel to protect humans who
