【實用遊戲app】Operation Destroy UFO|最夯免費app-綠色工廠好玩App

You are the last line of defense before an alien invasion takes over the planet. Shoot down as many UFO's as possible to gain points and advance to the next level.Beware of missed shots, as they will count against you in the end. Each hit will result in a phone rattling jar and sound effect. Save the planet and have a BLAST!