I guess its a indie/arcade download on xbox live, you use you avatar and like go to different game rooms with old school standup arcade games, old games like asteriods shit like that, its a free download too
Cerbere, game room is a game you download on live that lets you build your own old school arcade you can buy the actual arcade cabinets and place them in your arcade they have around 30 titles available all old atari and intelevision type stuff and your friends can visit your arcade and play and they have to put quarters in and then you collect the quarters and go use them in your friends arcades . . .
It's pretty cool I guess if you like those older games but does get boring after awhile