This isn't gaster 1image

This sprite is called mystery man

There is a mystery man behind the tree 2 image

In deltarune gaster isn't dead

In Undertale he fell into his creation (the core or the dt extractor it isn't clear) he was shattered between te and space

In deltarune he can't be dead because gaster din't create the core or dt extractor he is alive working on experiments ( maybe in the bunker ) that means that he isn't in the dark world. That means that this image 1 isn't gaster.

But don't forget this is just a theory a game the...