I'm not sure if I 100% agree it fits the theme, though as another person said, I prefer this over yet another game where you're literally tied to another character with a chain :p, but nice job! My only problem was that the WASD controls were a bit too imprecise to catch those bunnies, but it's entirely bearable and with enough determination you can still claw your way through each level :). Wish it wouldn't dump you all the way back to the main menu every time I lost, though. Either way, nice submission!
Oh, and of course, nice presentation. Loved the main menu image xD.