Super Famicom Super Beach Volleyball Please check the condition from the photos. I have confirmed that it works on a Super Famicom. Regarding the remaining battery life for the backup battery, I cannot guarantee it as it is over 30 years old. When purchasing, please refrain from purchasing if you are sensitive to the condition, as it is an old item and may have stains, scratches, discoloration, label deterioration, etc. We are sorry, but due to the prevention of product substitution, we cannot accept cancellations or returns after shipping. Please purchase only if you understand the nature of retro games and that they are used items. super famicom