Def Island

Enemy craft closes in on a small island. Def Island places a lone cannon between the shore and an endless assault from boats and planes. No weapon swap appears here. One gun handles the full defense, and the attack never breaks into separate stages. Points pile up during the fight, then pay for improvements that strengthen your position on the island.

How to play?

Fire the cannon by setting both shot angle and shot power, sending each projectile along a matching arc. Watching enemy speed helps place shells ahead of moving targets before they pass the shoreline. Score points during the battle, then spend them on upgrades and stay in the fight as long as possible.