Decent
It looks like you really didn't put enough thought into this.
Graphics - Not too shabby, but the way the ball rolled seemed very choppy even on grass, not much else to add here.
Style - These types of games have been done before, dodge and obstacle and such, but you control the obstacles. Only one glaring problem here, the levels that require you to push three keys are far too easy, all you need to do is tap all keys because they have no conflicting obstacles. You should add more obstacles to each level.
Sound - I admit, I didn't like the sound too much, but I loved the third level song, it was awesome.
Interactivity - Really not much going on, you don't control the ball only the obstacles and it was very limited, but I don't see how you can improve on this.
Overall I believe this game is good, but it could be a lot better with a little more work to compete with the other runner (that's what I call these type of games) games.
Vesper