Decent, but not too impressive
Well, obviously you knew what you were doing when you made this. Unfortunately, it has a lot of potential that wasn't displayed here. The game play itself was fun for a while, and extremely basic. There wasn't that much skill involved.
If you could improve the graphics and make things a bit flashier, it would greatly improve the feeling of the game. As it is, it feels a bit...dead.
But it was good enough. It gets real fun when things start to go super-fast!
BTW, I only got to level 14...;)