A hostile force on another planet is planning to initiate a deadly attack on the world. You are hired as an elite fighter to take on the enemy and destroy their base on the planet blue. Select from different space crafts to ride each with different characteristics like speed and shield and step into the battle field. Use the A key to fire bullets towards the enemy and the S key to create a momentary shield to protect from damage. Dodge the incoming fire by using the arrow keys to move around. The more enemies you kill the more will be your experience and then your weapons will upgrade. Unlock several other ships by progressing through the game.