"Shake Mania"--is an app which test your shaking power. "how much you can shake?----it easier to find out through this app. Play shake Mania and compete with your friends to become the best iPhone shaker. http://itunes.apple.com/us/app/shake-mania-free/id388929912?mt=8
one of the best platformers available in the app store, the only thing that brings it down is the controls, while it's great to play with just one finger, it also not as friendly as the controls people are used to. Like FlyGaGa,but it only needs u to tilt~