WOW, great game, seriosly impressed! Great take on the theme and the gameplay is very fun.
The two criticism points I have is,
1: It would be nice to see how many levels there are mid game or which one you are on like "level x/n" in the corner or something.
2: Tha background music gets a little repetitive, I know this is hard to make a longer song and for my game we used premade music which is not as good as making it yourself, but the sound did get a little repetitive. This is just nit picking of course because the rest of the game is so great!
The game itsself is great fun and then the fact that you can also go for a highscore if you like is a cherry on top! the graphics are really neat and fit great.
Great Job!