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.
Help the Keeper of the Magic Hammer protect the castle from enemies. You will face the representatives of four elements: water, fire, earth and air. Use their vulnerabilities to opposite elements by selecting the correct hammer.
Organic monsters want to capture our planet. People are in danger! Kill all enemy aggressors. Build your towers and battle units and strike a SMASHING BLOW to the foe!