Nice Game! although the second cat chase if a bit difficult the game is great. love the bun and the jumps! the music is nice and relaxing to listen to, i do wish that it looped a little bit cleaner though. other then then what you have here is solid and fun.
The ledge jumping mechanic is super fun and interesting! I love the way it feels. It adds an interesting twist to this rather simple game.
Something I would suggest is some sort of counter to the collectables that are scattered around the map! Another one is a Reset button! Something like pressing R to reset to some sort of checkpoint or something similar, maybe a bunny burrow!
Other then that its a good game, and I hope this review is help in so way!