We offer immediate purchase approval. Our store deals exclusively in authentic products, so please feel confident in making your purchase. This is a retro game for the Sega Mark III/Master System, "Phantasy Star," a space fantasy role-playing game that would later become a series. Operation has been confirmed. "Phantasy Star" SEGA MARK III / MASTER SYSTEM 4M Gold Cartridge Memory Backup The contents are as shown in the photos, including the cartridge and outer box only. The box shows signs of aging. Price negotiations are possible. Please use the comment section.