Mario is going to war with Bowser on the sea. Defense your castle against Bowser invasion. Send Bowser home using you super smart bomb to sink Browser navy.
This is a pretty cool bullet hell shooter which uses the Stage3D technology. (It defaults to 30 fps but if you got a nice graphics card, go to Options / Graphics and turn up a notch to 60 fps for smoother gameplay.
Pirates have stumbled upon your beautiful island and want to take over your fort. Defend your fort by firing cannons at them while upgrading and adding more cannons. Let those pirates know who owns this island!