Simple, but challenging. The fluid animations of the player character work really well, so good work on that!
I agree with another commenter on the idea of having some kind of powerup or way to remove a few of the asteroids. With the size of them, it doesn't take long for the screen to become covered in them, leaving no room for escape haha There's a lot of groundwork here for some huge potential!
Please check out and rate my game. =)