Very very well done. I think the idea was done basically perfectly and the art style is very cute. The only issue I had was the seemingly generated on the spot save states for when you die. It causes some kinda annoying points when one slime got stuck behind a door and the other didn't, or a time where a slime was stuck in a death loop.
I was able to get out of both, thankfully, but it was still a little bit of a pain.