Well, needs some work.
I liked the concept, but still needs quite a bit of work. The physics of the dot were EXTREMELY annoying, maybe you could tone it down a bit. Also, to all the cheaters out there, you can just right-click and press FORWARD to skip the levels, which you need to do as it's so hard. PM me if you want to sort that out. And, the play again button doesn't work.
Fun for a while though, I think it'll pass. Try and do some graphical tidying up also.