Fruit Ninja

There's not much to Kinect title Fruit Ninja: Fruit gets tossed into the air. You slash it in half by waving your arms like a samurai sword. The end. But that very simplicity is what makes the game such an immediate success. Watch someone play for a few minutes and you'll have a firm grasp of the basics, and while practice certainly improves your reaction time, a total newcomer to not just Fruit Ninja but to gaming in general can step up and have fun immediately. It's ho hum as a solo venture, but get a group of people in front of Fruit Ninja and hilarity is pretty much guaranteed. So are bruises.