You are a part of US Combat operation. Complete the operation by shooting targets down. You got limited time to complete the entire operation, otherwise you fail.
Destroy the enemy's boss tank to advance to the next level. The more enemies you destroy, the more money and points you earn for upgrades and improvement of your rank.
A new type of sci-fi themed tower defense in the near future with 12 laser turret units, a complete storyline campaign with huge map and over 20 waves of enemies.
Mankind has been traveling through a cloud. The sky has been dark ever since the war began. It's time for mankind to end the war before the war puts an end to mankind.