Oh wow, what a fun concept with a lot of potential!
The mechanics are awesome and the controls are smooth. I also like what you did with the cat spritesheets and how you edited them. The rolling is so cute :) And the looking up animation <3 I would love to see this become a full-fledged game.
My main issue is that I want the game to have a cohesive art-style. Right now it's a bit all over the place and hurts my eyes. Otherwise this is great!
A simple concept executed very well.