I like the idea of memory game + platformer! You need to remember the where the slimes are before they hide. The game graphic is top-notch! Cute music and sprites. The jumping physics could use some work though.
I wonder if there is a pacifist ending? I tried to go for pacifist route but I find some slimes have to die coz they are in my way. If there is, then that turns the whole game into avoiding coins and slimes.