【Product Description】 Game Boy software NECTARIS GB Nectaris GB Tested DMG-AN5J-JPN 【Condition & Operation Check】 Condition: Used Operation confirmed on Game Boy Advance, comes with a case. Data saving was not working, but it has been replaced with a new battery and data saving works without any problems. (Battery replaced on 10/4) The condition shows signs of aging and some minor dirt, but it is relatively clean. The case and software have been wiped with disinfectant paper and cleaned with electrolytic alkaline cleaning solution. Please understand that this is a used item stored by a private individual. Shipping will be done via Mercari's anonymous shipping service.