【Product】 FRAM-modified, Battery-Free Game Software GB GBC Game Boy & Game Boy Color Shin Megami Tensei: Devil Children Red Book 【Description/Condition】 The dead battery has been removed, and new FRAM (or flash memory, etc.) with no degradation has been installed, so you can continuously save data without a battery. * Initial operation confirmed on a genuine GBASP console. * Confirmed data saving and loading. * Cartridge and terminals cleaned and maintained. * Prices may fluctuate depending on the product condition, used market price, etc. 【Important Notes/Things to Confirm】 * As this is a used item, there may be signs of aging, scratches, dirt, discoloration, odors, label peeling, etc. on the cartridge and label. Please check the condition in the images or through questions. * The operation of the game software is not permanently guaranteed. * Turning off the power during saving, impacts, freezes, or other unexpected actions may damage save data or the FRAM. * As this is a used game, there may be poor loading. * Operation on devices other than genuine handheld game consoles has not been confirmed, and operation is not guaranteed on compatible devices. * FRAM degrades with saving and loading, but the degradation is not noticeable with normal play. * The condition of the product is based on a personal assessment as a used item. * Due to the images taken, there may be differences in actual color and condition (dirt, scratches, etc.). * If there are any issues with the operation after arrival, please contact us before leaving feedback. * Please check the profile if you wish. Please consider and purchase after understanding and agreeing to the above. Search for other items on sale here: #YUYU・SHOP