All operations are listed above. I will explain from the left icon. [Starting and ending the game] You can start and end the game with each tap. [Game Reload] Redo the game. [BGM On/Off] You can select On/Off of BGM. [Voice On/Off] AI voice can be turned on/off [AI and your display] When it's your turn, the icon turns blue. The number will display the number you guessed