Very stylish, very slick. One tiny thing to consider if possible: The ball movement may be too tied to the FPS of the player. I have 240fps on my monitor and this ball goes WAAAAAAAAAAAAAAAAAAAAAAAAAAAAY too fast. The only other comment (at this time) says the ball was too slow, so I have a feeling my machine might be overkill.
See if you can somehow fix the physics being tied to fps OR allow to manually set the frame rate in the game.