Warm -Tipsif There Is No Response Or Shutdown During The Game, The Battery May Be Low, Please Replace The Battery,If You Want To Adjust The Volume, Please Turn On The Power Switch First, Press The Volume Adjustment Key Repeatedly To Adjust To The Volume You Want,After The Game Starts, You Need To Press The Lit Bubble And Turn Off The Light To Confirm That You Have Successfully Captured The Lit Bubble, If You Press The Lit Bubble And The Light Doesn'T Go Off, The Machine May Not Be Sensing Your Press. You Can Press Your Finger Into The Bubble Again To Quickly Turn Off The Lit Bubble Light,If You Encounter Problems During Use, Please Let Us Know, We Will Provide You With Solutions As Soon As Possible.