價格：免費
檔案大小：76.2 MB
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
With the technology given by the good aliens to defend the earth, travel through space defending the earth against the waves of bad aliens that want to invade our world.
支援平台：iPhone, iPad