Oh God I closed my browser while writing this. Oh well, time to write everything again!
I agree with founderio there. The controls are kinda annoying. The character weirdly slides on the floor (and I mean not when that should be happening). I didn't even complete any level tbh. If I'm supposed to move myself with this super slow platform in level 1, with the weird controls, then I don't think I have the patience for that.
The art is okay, the music isn't terrible, although I'd rather it not have those weird high-pitched sounds (I'd like something that fits the game more)
The hitboxes of the objects are also confusing. And I have no idea how to jump over those blocks in level 2.