It's good. And sometimes you'll get bored. Make some more powerups and stuff?
The music is also okay, but sometimes, you'll get seriously bored.
The art should have done better, and more visually appealing.
But it's still okay ;)
Controls are easy, but you really need more stuff to do, well, it could have done the game more exciting. And you dont have to wait there and do nothing until the level finishes.
Everything is good, hope it gets better next time ;)
Keep it up!