I agree with some of the other comments, most notably Ibigbadbob and Schw_Pestbeule. Music is great, and the concept is very good. Though it doesn't really seem that the cyclic design does anything, its basically a flat level repeating itself that warps when you move across the plane. I understand that this is a prototype, but if you do plan on making a full game I would like to see the cyclic design matter in some way, like using your gravity to get across some large gap or something...don't know how this would be done on a 2D plane, but if you find some way to accomplish this it would probably be a very unique game that a lot of people would enjoy. Overall, great game, untapped potential. Hope to see more from you.
P.S. I second the smaller levels.
The delay between my mouse click and response on the game is like half a second...which is so terribly annoying I had to stop myself from playing. Guess it's either my internet connection or my crappy computer.
Holy crap theres a lot stuff in this game I recognize...Plank-Ed Edd & Eddy, Oddish and bonsly-Pokemon, that sound when you unlock something-Super Smash Brothers (Brawl I think), the radish-Mario 2, the Hills with the eyes-Super Mario World, and when you hit the bricks its the same sound from mario...O_o Oh yea, and the almighty mushroom!