【實用遊戲app】SatDef|最夯免費app-綠色工廠好玩App

Satellite Defense! Protect Earth from a swarm of alien energy shielded missiles and planet busting asteroids. Quickly identify the right energy needed to penetrate the shield and blast the missiles away and gain needed energy for your plasma torpedoes!Are you up to the challenge? Can you save Earth? Can you get a higher rank than your friends!PARENTS: this is a very fun game that also speed drills kids on their times tables. The game remembers all wrong answers and drills on those questions harder. This game will delight your kids and improve their math!