Not bad, however...
This is a solid game, with a good engine, nice graphics, and cute design. However, I feel like it is a little too retro for its own good, in a bad way. That is, it seems to have missed out on the substantial imrpovements in gamwplay in the platforming genre over the last two decades. To improve it:
--give the main character more abilities. There have been a lot of innovations in platforming over the past 10 years, and it just isn't as much fun anymore to play a character who can't slide, double-jump, wall-jump, or for that matter, even kill enemies.
--speaking of which, give your character some new attacks. It would be interesting to have SOME enemies who cannot be hurt, only frozen, but this game would be far more enjoyable if most enemies could be disposed of permanently. Most of the hazards of the game, after all, come from obstacles rather than enemies. The enemies are merely a nuisance.
--the sound effect for when you take damage is...well, it just doesn't sound like a taking damage sound effect. I'd pick something else. Same thing for the dying sound effect.
--this game deserves a proper intro explaining just why this fully-grown man is running around a dangerous obstacle course in...a bunny suit. I imagine some tough-as-nails marine going to see a government scientist for a new top-secret combat suit only to find it makes him look like a rabbit. There is great potential for hilarity here. :)