It's fun and challenging! I'm not a platformer player so it was a bit too challenging.. but I enjoyed trying to beat the level:) Also I liked the song, it created cool atmosphere.
I agree with the comments here about dissonance between the "feeling" of the game (cute and funny) and the punishing mechanics. (There is a game Big Journey, it's about cute round cat, and it's also kind of platformer, but it's focused on rewarding, not punishment, like you can avoid difficult path but if you take it you'll find something. Probably something like this will fit your game).
It was fun! Waiting for the updates)