價格：免費
檔案大小：32.6 MB
版本需求：系統需求：iOS 8.0 或以後版本。相容裝置：iPhone、iPad、iPod touch。
支援語言：英語
This simple application is used to challenge the visual perceptual ability of the player, with regards to object speed. Choose correctly the fastest/slowest moving object to get the most points.
支援平台：iPhone, iPad