Board Thread:Fun and Games/@comment-37334388-20191013132958/@comment-33883848-20191024175400

Gaster= Sans ,Papyrus and Toby Fox and since Sans and Papyrus are Gaster,they are Toby Fox too. And since Toby Fox created undertale and that he's Gaster, Gaster created Undertale.

(I swear to God that it's MatPat theory)