Board Thread:General Discussion/@comment-27907368-20160323193924/@comment-24858760-20160605154407

My head canon is that Sans wears the same sweater as Gaster's Suprised sprite. have a look: http://vignette2.wikia.nocookie.net/undertale/images/4/44/Sansanimated.gif/revision/latest?cb=20160223004601 http://vignette2.wikia.nocookie.net/undertale/images/6/67/Spr_mysteryman_1.png/revision/latest?cb=20160531230147 My other head canon is that Gaster fell into the Core because he couldn't handle Sans's jokes.