Math Orbital Cannon

Use the orbital cannon on your spaceship to protect Earth from asteroids and enemy attackers. Dial in the degrees from which they are attacking to position your spaceship and fire your cannon. Delete and survive the waves of asteroids and enemies that attack from all angles. Earn coins to buy power-ups which will help you successfully complete all 20 levels.

Use the on-screen keypad to enter the degrees (0 - 359) where you want the spaceship to move and fire its cannon. For reference, 0 degrees is the right side, 90 degrees is top, 180 degrees is the left side and 270 degrees is the bottom. Click on the video button on the main menu to see a video on how to play the game.