Your goal: Sink your opponent's rafts before he sinks yours. Turn the wheel to raise your catapult's launch intersity, press the launch button to fire away! During normal rounds, you will take turns firing at each other's rafts. During speed rounds, it's all out war, go as fast as you can. Be careful not to sink your own rafts - you can try again if you lose a round, but you only get 3 extra tries.