The game seems pretty neat! It's a simple platformer and I think it could be really fun. I don't know if this is a bug or something but sometimes I'd suddenly get a game over right at the very end when I'd get the last candy bear. And have to start over from the beginning. It only happened in the second and third levels though.
It also might be a good idea to put an indication that the floor is a game over, and perhaps when switching levels, make the player character have a few seconds of standing still, rather then starting off from however they ended it? There was a few times where i'd been jumping into the next level only to fall and get a game over.