!Christmas Sale - Limited Time Offer! Invasion ... UFO from the depths of the universe is here. You do not see them right now. But look through a special device! Defend your planet! Gray UFO - scouts. They are easy to destroy. Red UFO - warships. Their mission - to seek out and destroy the resistance. You. Destroy the UFO more than your friends (post your score on Facebook). Make unique photographs UFO over the city and cut your eyes to the truth - we are under attack from space. Your anti-aircraft gun fired automatically. Just point at the target, soldier! Go! iPad2 only supported!