I really like how you implemented the theme. Having the player play in reverse is a really fun twist in the sea of games where the game plays back in reverse. And it's also implemented really well, with fun levels, nice art and fun references to other games.
I always try to give useful feedback, but in this case I have nothing else to add other than that I wish there were more levels, because I really enjoyed this game. Great job!
I'd really appreciate it if you would have a look at my game as well, and be sure to download the smaller version :D