I have an X-Box 360, and was looking for a game that I could do online with friends.
I think I have one. Armored Core 4.
I chose this for a few reasons.
1) It is pretty fun.
2) it is VERY inexpensive because it is an older game. You can get a used copy at Game Stop for less than $5.00 if you have a game stop membership. (They have a 50% off sale going on.)
3) I like Giant Robot Fighting Games.

Here is a Video Review of the game.


Here is a write up on Wiki about it.
http://en.wikipedia.org/wiki/Armored_Core_4

Anyone interested in getting together for an occasional game?