Not one of the greatest of all time, but I'll also mention Xbox Live Arcade games from time to time. They are generally very good with excellent price points. The latest to come out is Street Fighter II: Hyper Fighting. And if I ever needed a reminder of how much I suck at games, this is the game to do it. The graphics look pretty spot on although, like most demo versions, it takes up only a small portion of your screen. You need to pony up the 800 points for this bad boy, and that's about 400 too many. For 400, I might have given it a try even though I can't beat even the first match. But at 800, it's a pass.
Fighting games are among my most hated because I suck the worst at them. I can never get the 126-move combos required to excel at these things. I've heard that on Xbox Live, players of immense skill are already staking their territory. I'm staking mine at the rear of the line. Nobody sucks at this like I do, and I'll challenge anyone who says different. I guarantee a loss!
If you salivate over fighting games and have a 360, then you are a strange person indeed. But you also might want to give this a try if you have 10 bucks burning a hole in your debit card. But get ready to have your ass handed to you. Hey, don't say I didn't warn...