Janken Brain training

This is a brain training game that plays rock-paper-scissors.
It is also called Janken.
Look at the hand that the opponent put out earlier and the instructions of "Win!", "Loss!", and "Draw!".
Then choose your hand to follow the instructions.
The score is determined by how many correct answers you get in 30 seconds.
If the answer is incorrect, the score will decrease.
You can turn off the sound by unchecking "Sound" in the menu item.
You can turn off vibration by unchecking "Vibration" in the menu item.