Wait for the arrow to point in the direction on the clock, then take the shot when the time is right. The weapon is a small ball that goes where the arrow points. Each dial contains only one hand that rotates. On each mechanism, the arrows rotate at their own speed and in a certain direction. You must destroy all the clocks. Be quick though, because the longer you wait, the less points you'll get. 100 quest levels + survival mode are waiting for you. Now go have fun!