Nifty...
... but as a game, not that great. But honestly, that's really cool; I played around with it for a bit and got a few cool generations out of it (I especially liked the "Follow Mouse" function), but you had no "Back" button to restart and try another one, so I had to close and reopen the window over and over again. Additionally, it gets very monotonous after about three or four generations.
However, I think that if you turned this into a Tutorial on how to make it generate like that, and how to make things follow your mouse around, generate random colors and add physics, etc., that'd be awesome. 3/5 6/10 Keep tryin'! =)