Well, the graphics were bad, and I think the balls were a bit too slow. It was a nice concept. You should make a new version with better graphics and stuff.
Was equally challenging there's a few things you cold do to improve this, spend a little more time on the look of the game just pretty it up a bit, and maybe a submit score button.
you could make it a lot better
Good, but improve on the graphics and the frame rate. You have a really cool concept here and I really liked it. maybe you can make a second one that has the advice mentioned below to make it better.