價格：免費
更新日期：2018-05-08
檔案大小：13.4 MB
目前版本：2.1
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
When the game starts, the player has 2 lives to save the planet. Every time the player destroys a comet, the player earns one score.
If the player hits 20 scores, he/she will earn one more life, and then for every 50 scores, the player earns one more life.
Players need to register via the form in the game to compete with friends and to record their scores online.
支援平台：iPhone, iPad