For a simple, quick game, this turned out all right. I like how the graphical style matches that of Hairball, that was a good idea. The way the hairpillars 'jiggle' before dropping is a nice touch. The gameplay is pretty fun; personally I haven't seen any other avoiders quite like it. Reminds me a bit of Sonic 1: Final Zone.
There is a bug in that the endgame screen says "submit it if you like", but there is no obvious way to do so. Also, it says "Final Score: " but no score is there.
I would have liked certain things to be a lot more obvious. For instance, the 'next' button is all but invisible, the start-finish progress bar is hard to see, let alone read, and I would really have appreciated some feedback when being hurt. This could be as simple as having the pillars stop moving downwards when they hit the ball, and flashing the health counter red.
Turn this from a six-hour game into a seven-hour game and I think it would make a worthy prequel to Hairball :)