【實用休閒app】Pen N Paper Air Defense|最夯免費app-綠色工廠好玩App

press up to move up down to move down and shoot to shoot.. only 5 shots can be on screen at a time...500pts for taking down a jet, 250pts for taking down a helicopter, and 100 pts for taking down a missile...you lose if you get hit by an enemy plane/projectile or if you let 20 enemies escape.-350 jet escapes -150 heli escapes -50 missile escapes. How many points can you get?