W Janken is a game app from adult children to enjoy a wide range. Rules are very simple (1) I want the hand to win the hand of the enemy in the rock-paper-scissors. (2) It is not a win if you do not win with both hands. (Please press at the same time the left hand and the right hand.) (3) I compete the time to 20 wins. You can expect the following effects when you play and continue to touch the color panel! • Enhanced brain power • preventing senility • Speed up the judgment Let's quickly the rotation of the head in a row every day! !