- It is a classic card game where you find the same type of card by flipping over two randomly placed cards. - Play the game often to improve your memory and concentration, and check the trend of changes in a chart. - Records of up to 5 people can be saved separately, so set your own name and manage records individually. - There are 7 levels of challenges in mission mode: easy, medium, hard, and very hard. - Supports Windows, iPhone, iPad, Mac and Android phone/tablet. * NanumBarunGothic font provided by Naver is applied to this game. * KOHI Baeum font and KOHI Nanum font provided by the Korea Human Resource Development Institute for Health and Welfare are applied to this game.