I would have to say Halo3 or any CoD game.
A good game is COD3
That depends on what genre your asking for.
I don't have this game but i have heard that its really challenging i think you need xbox live to play multiplayer
How do you unban multiplayer on your xbox 360
if you want to play multiplayer on the xbox 360 you can with and without connecting to xbox live. some games you have to connect to xbox live and some you don't. when you buy a game look at the back of it and it should tell you.
It would depend on the game that's being played ...
yes i think so
No.
You have to first update the game over xbox live
Unfortunatly, Oblivion is not multiplayer (at all) online, but you can download extras for the base game off the marketplace.
flatout is a good demo derby game for the xbox 360
Yes, it has multiplayer.