Your Galaxy is attacked by alien invaders. Your warship was entrusted with an important mission. Infiltrate into the enemy space forces and destroy all command ships that control the military operations. A lot of enemy space fighters and battle planes will stand in your way trying to prevent your state-of-the-art ship from infiltrating into enemy's rear and accomplishing your mission. Fly over a certain battle area at each level. Meet different enemy ships that attack you on your way to the target. Destroy as many enemies as you can and stay alive. Sometimes you come across big command ships that are the primary aim of your battle mission. Get the chance to equip your ship with new weapon, armor and energy by destroying the enemy ships. Good luck in your battle mission! Defend your Galaxy!