I just had a thought...



....Gaster goop in the void all fragmented an' stuff.



... someone, somewhere, opens packet of marshmallows. Gaster goop temporaily pulls itself back together and *goops* to hover threateningly behind that person's back.... but they can't see or hear him.



He attempts to grab bag. His goop passes right through.



Person with marshmallows moves on. Gaster wails/moans in despair