⭐︎Repeat Customer Discount: 5% off⭐︎ Please check my profile for details. This is a used game cartridge for the Nintendo Family Computer, "Alien Syndrome" by Sunsoft. Includes box, instruction manual, and plastic case. There is some wear and tear, and signs of aging. The box has all four flaps. Tested and working. I will take thorough measures to prevent crushing and water damage when shipping. #sinsinFamilyComputerBooth #sinsinHighValueRareFamilyComputerBooth Family Computer Used Cartridge Jigoku Gokuraku Maru Double Moon Densetsu Ice Climber KAGE Paperboy Super Mario Layla Madoola no Tsubasa Nintendo Showa Retro PlayStation Space Hunter Valis Spelunker Kaguya Hime Densetsu Switch Namco Ninja Ryukenden Salamander Double Dragon RoboCop Nadia: The Secret of Blue Water Star Wars Hitler no Fukkatsu Akumajo (Castlevania)