價格：免費
檔案大小：107.7 MB
版本需求：需要 iOS 7.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Swap turrets with your finger to defend Earth against asteroids!
Match the turrets against the asteroids with the same color.
Easy to play hard to master!
- Easy and simple swipe control
- Endless gameplay
- Collect stars and unlock new turrets
- Challenge your friends with the best high score
- Complete challenges to win more stars
支援平台：iPhone, iPad