Usually, you punch to fight something unfriendly to you. Have you ever punch balls so to make it hit something else? you use your fist or hand to prevent the naughty ball from fleeing. When the ball is coming, you click the fist to hit it back. The longer you hold before releasing your mouse, the more powerful the bang will be. You get scores when the ball bounces back destroying different colored faces. Interestingly, your fist will change into palm or become bigger or smaller when the ball touches different faces. Don?t miss the ball three times otherwise you will lose your game.