What you see here in the video is not the gameplay! You have to wait until the complete sequence of directions is shown up. AFTER the "GO"-Symbol appears (not before, like here in the video) you have to turn the device into the shown directions. After completing a sequenze the game shows you the next sequenze, and again you have to wait until the shown sequenze is finished and the GO-Symbol appears. Now you can start to rotate the iPhone into the same directions as shown before. The sequence grows longer with each level completed.