The gymnastics game of the head was made using the rule of "Rock-Paper-Scissors" which is time-tested play from ancient times.
How many times it can lose in the time limit is scoring.
The time limit is 20 seconds.
Although it is simple, since I think that it is good for the gymnastics of the head exactly, please utilize for little killing time, brain training, etc.
♪ which playing a match against a friend also rises and I regard as pleasant
Since you can compete with the user in the world in net ranking, please participate.