I actually thought it was ok. It was a bit dumb at first when the ball was still, (or I thought it was still,) but once I realized it was moving around on its own I spent some time trying to click that ball. :P
1/5, not because the game is bad, (I don't like it a lot, but it's fun for a while) but because you have to pay for content in the game. It is impossible to get the levels by just playing the game... (If you could pay to get stuff early, that would be fine with me, 'cause I wouldn't)
If it didn't slow my computer down so much, this would be brilliant. Gameplay is a little familiar, but I love this sort of game , so that's alright. So far the story is pretty interesting, too. 5/5