The Rotator will test your ability to multi-task and react quickly. Dodging between the arcs would be hard enough on it's own, but the entire game is inside a circle, and if you aren't careful it will roll right off the screen!
Touch the screen to move around the circle, dodging the red arcs and touching the blue ones. Tilt your device back and forth to keep the circle balanced. One mistake and it's game over, so every millisecond counts.