The cat is moving way too fast, it made the controls very slippery. Platforming is extremely difficult and quite frustrating to play.
But the rewind mechanic is great, and the sprites were nice.
Also, I recommend adding some/any sort of sound/music, having a soundless game is quite jarring to a player. You don't need to make sounds/music yourself, you can try getting free sounds and music online, or use sfxr for a nice sound generator.
Anyway, good work on the game.