This piece of Physical Prototyping is a way to improve physics and motor activity in the army. We believe that by practicing these skills people will perform more liable and it will lower the risk that mistakes are being made, and soldiers being hurt. The game is built in Processing, which makes it easy connect to electronics through Arduino. The basic idea is to avoid enemy space- ships and at the same time try to shoot them down with your spinning gun. When you shoot and miss, you have to collect the missile(s) before you can shoot again. When all enemies are dead you go to the next level. At each level the number of enemies will increase which makes it harder to avoid them and at the same time easier to shoot them down. Each third level you get a new weapon. The first weapon you get only shoots one missile.

To interact with the game the user has to both steer the spaceship by leaning her head in different direction and strategically choose when to shoot and when to avoid the enemy spaceships. The higher level you reach the more enemies you have to avoid and shoot down. You also get new weapons to be able to shoot down more then one enemy at the time. The helmet measures the direction you lean you head in, the more bias the faster the ball moves. With only two buttons on the joystick to control the gun and information screen, the game is easy to play and understand. When you start the game, a screen comes up that tells you to put the helmet and joystick online. When both devices is online you can read a information screen by clicking on one of the buttons on the joystick. It tells you how the game works and how to play. Then you push the other button to start the game.