i mostly just play the demos cuz i'm too poor to go ahead and buy them =[
and i don't know if any of you have heard of the game "Ikaruga", originally for the Sega Dreamcast and had a version on the Gamecube (i had it for the GC back before my bathroom burnt down and flooded the house) and that game was so much fun it was definitely worth the $40 i (or rather, my mom) had to spend on it, it's pretty rare and i was lucky to get a hold of the copy
anyways, it was uber-fun and is now coming out for xbl arcade in January. that's gonna be my (and my friends with whom i used to play it with) addiction for a while when it comes out
before my 360 broke due to the new red ring of death[?] i would play E<sup>4</sup>, worms, geometry wars, and some occasional classics (frogger, gauntlet, etc.)
Its hard as heck, but i did it!!! If u stay consistant You can too! I stopped playin after hittin the 800k mark now i average 3-5k sos anyways U should really checkout geometry war: waves THATS INSANE!! my HS is 342,000 ITS HARD though!!