When your island is in danger and you are the only person can save it, what will you do? You should use your cannon to shoot your enemies and protect your island. There are many boats and airplanes are approaching you, use your physics knowledge to defeat them. Good luck! island defense, shoot ships, cannon game, physics game, high score, mobile game, strategy game, ship defense, aircraft shooter, defend island, challenging game, arcade game, survival game, ocean defense