Geometry Wars is crack, dude. I remember first downloading it way back when on the recommendation of a friend (and after trying it out in PGR3). The game is freaking addicting, it's just too bad that I suck horribly at it. There's something that just makes me want to play it, though, no matter how bad I'll lose. Maybe it's all the colors and the music that are so hypnotizing... @_@

BTW: What's your GT? O.o