This game is a game that differentiate the characters."O" or "0" is displayed on the screen."zero" and "O" is is clearly different.So it is very simple.In the app called "All SNSChecker", you can post to SNS.ex. Facebook,Twitter,and mixi[Game Mode]Normal gameThis is a game to answer the quiz of 10.You can gain more points by answering quickly.Endless ModeIt is a game to answer the question forever.You can continue the game until you answer incorrectly.List of fontsThis is a list of fonts that come out during the game.RankingYou can check the two modes of the game ranking."0" is able to compete with the ability to distinguish between "O" in the world of the player.