iPolygon is a game utilizing the accelerometer to control a ball inside a geometric shape. Your mission is to break the sides of the shape your ball bounces around. To do that you have to turn the ball all spiky by steering it into a power up. You control the geometric shape by turning your iPhone 360 degrees. It takes some swift iPhone movements when you progress to harder and harder levels. Once all but one side is destroyed you progress to the next level.