The Most Amazing Time Sink On The Web
I have wasted so much time playing this that I think I should be taken to a deprogramming expert. Though it's a measure of how amazing computing has become. I remember playing a black and white version of this on one of my old Macs. Everything in remarkably crude outlines and no sophistication in the eeeeevil asteroids. And now it's a game that can be delivered over the web with gorgeous graphics and a heck of a lot of fun play.
If you want to waste some time....