You need one social game that is easy to play and doesn't require a lot of commitment.
You need a game that shows the graphical power of your console. Not the full power but at least a glimpse of the potential.
You need a game that is deep and makes the gamer want to play, even when they don't have time to play it. They'll stay up past their bedtime. They'll think about it when they're not playing it. Make them say "One more level" or "Just one more hour...."
And that's it. As long as they're exclusive. It doesn't do any good if the big game that shows off the capability of your console is also the game that shows off the capability of the competition. Call of Duty? Great game but you can play that anywhere. Arkham City? Amazing title. Everybody has access to it. Why do gamers NEED to play on YOUR console?
