Choose from the 3 exoskeleton suits and step into the battle field to stop the incoming waves of the alien ships. The enemy will continuously fire towards you and you have to dodge as quickly as you can. Keep an eye on your armor and health and collect all sorts of power ups like the health, life, ammo, shield, and the EMP. You have limited amount of bullets, make sure you use them wisely. Use your mouse to control the character. Hit the space bar to select you weapons. As the levels increase, the enemy becomes more furious. Destroy the enemy mother ship to bring an end to this war.