I agree with what others have said, the game is indeed quite cute.
The low-poly models + choppy animation really fit the "children drawings" vibes.
My main critic would be that you don't really have to engage the enemies. I ended up running across the level without fighting any of them... ^^'
But doing so made me encounter the scariest slimes I've ever seen in any video games, they zoomed around the level while doing their lunging attacks !
It depends on the road you wanna take, but one idea would be to have the rooms get locked when you enter one if they contain any enemy (à la Binding of Isaac). Containing the fighting to individual rooms would also prevent them from attacking the player from a room still under "fog of war" (which happened to me a few times ^^').
But overall great game! With a bit more polishing and content, it would really end up as a nice little game !
Have a good one ! :)