In the far future, Earth is destroyed by decades of war for resources. The survivors build huge motherships and depart for a journey to the stars, yet the human learn that they are not alone as they encounter the dreadful..
Configure your Mech and go to battle! Collect the special diamonds discovered on Mars and bring them back to base. Watch out for evil aliens or better yet, blast them back to where they came from!
Stop the invasion before the enemy reaches our cities! Alien life forms have been detected and our army has mobilized its defensive tower forces to protect us.