Yeh, that's a massive download. It's always funny to see a pixel game build in Unreal with the "Lighting needs to be rebuilt" comment in the left.
I had a lot of issues with this game, but not necessarily because of the concept. It was cute, and I liked the effort put into the characters. There was a decent amount of story the art design.
My issues were many gameplay related. Mustard didn't always fire, and there was something strange about the hit boxes on cookies and enemies because no matter what I did I couldn't seem to actually save anything. Maybe that was the point.