Just tap your screen to make same color. Or Tap your screen when two dot are diferent color. Enjoy it!!! Main Features: - Focus,Focus. - Newer be distracted any time. - Get better score in GameCenter. From the creators of Huntergame Interactive Technology Co.,Ltd. Facebook page:https://www.facebook.com/pages/Huntergame-Interactive-Technology-CoLtd/349694381877087?ref=bookmarks Game support:gs@huntergame.cn