more info:
What else can I play on Xbox Live Arcade?
Retro classics like Dig Dug, Pole Position, Galaga, Joust, Defender, Robotron, and Gauntlet from publishing partners that include Namco Ltd. and Midway Games Inc. These games are true to the original arcade titles, as originally designed for coin-operated machines.
Card and board games like poker, hearts, spades, backgammon, and chess.
Puzzle and trivia titles including Bejeweled, Zuma, Hexic™, Fuzzee Fever, and Mah Jong Tiles.
Action and arcade games, with new takes on classic action games as well as side-scrolling shoot-’em-ups and old-school 2-D platformers. These titles include Alien Sky, Hamsterball, Feeding Frenzy, and Marble Blast.
Social sports. This genre includes the types of games that you would play with a group of friends on a Friday night while hanging out, such as bowling, billiards, and golf. Awwww yeah!
You can try out any and all of these games on Xbox Live Arcade. Then you can purchase and download the full versions of your favorites. New games will be added monthly, so there will always be something new and cool on tap. By the time summer rolls around, there will be over 40 games to choose from!
What's the damage?
Every game has a playable demo, so you can check them all out and see if they rock your world. If you want to purchase the full version of a game, here's the skinny: Some basic games like Bejeweled and Alien Sky are $9.99 U.S./$14.99 Canadian; other, more fully-featured games—like Guardian and Fuzzee Fever—will set ya back $19.99 U.S./$24.99 Canadian. There's also an awesome $14.99 U.S. ($19.99 Canadian) bundle from Namco that includes Galaga, DigDug, and Pole Position. The sweet thing is that the cost will just be charged to your Xbox Live account (like when you buy premium downloadable content on Xbox Live). You don't have to mess around with entering your credit card info each time. Then your new game is downloaded right to your Xbox so you can play it whenever you want!