What's awesome is almost all the games are two player, plus you can play drunk because you have infinite credits
Quite a few games are four player but it seems like you have to build your own joystick if you want a four player one. I beat Teenage Mutant Ninja Turtles with my friend last night, had we been at a real arcade I'd be $20 poorer
A few of the games I've downloaded are X-MEN, Simpsons, Rampage, Pang, NBA Jam, Michael Jackson's Moonwalker, Marvel vs Capcom, Metal Slug 3, Mortal Kombat 1, 2, and 3, Golden Axe, Gauntlet.
If anyone can think of some other arcade classics let me know because I've been having trouble remembering all the games I used to play at the arcade.