Cool game. But man is it though! I like the random generated world. But the black spikes in front of the dark background are sometimes really hard to see. And I probably need much mor etime to get a feeling for the ball movement. Right now it still feels liek I have no real control over the speed (and jump height) of the ball. Guess that needs more practise.
Oh and the background is amazing. Too bad I can only ever see it for 3-4 spikes ;)