This item was purchased new by an adult. It has been tested and confirmed to work on a Super Famicom. It has been stored in a dark place after use. The box shows some signs of aging, and the instruction manual has stains. Please check the images. The software is in good condition. Rest assured, this item comes from a pet-free and smoke-free environment. Initial operation has been confirmed. It will be cleaned with a retro game revival agent before shipping. Please check the images and comments for the condition. Please refrain from purchasing if you are overly concerned about the condition. There is no history of internal battery replacement or disassembly. Returns are not accepted if the item does not work, as this can vary depending on the operating environment. Please understand this before purchasing. Please be sure to check the photos as this is a long-term storage item. Instant purchase is welcome.