價格：免費
檔案大小：27 MB
版本需求：需要 iOS 9.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
A simple game that test your reflexes, just simply moving squares up and down to match the colour in the centre.
Clean and simple, but additive.
Swipe up and down on the screen to move the squares.
Try to beat players around the world with your new high score and have fun!
支援平台：iPhone