Great Game! Two people can play on one screen! Waiting in a queue or in a traffic? Need to kill time at the airport? Challenge the person next to you to a duel. Instructions: Hit the oncoming ball with the same colour to weaken or destroy it. Shoot the wrong one and it will get stronger. Just press the screen on the proper side of the gun. Big balls can be hit with any colour and cause all the balls in sight to disappear.