Mega Drive game cartridge Sonic Adventure character Chao figure keychains. From 1999. New, unopened, and unused, but since it's an old item, those who are concerned should refrain from purchasing. Sonic the Hedgehog, Super Sonic, Knuckles, Sonic, figure, rare, retro, hedgehog, yuuki, Mega Drive, strap, keychain, initial, Sega, gashapon, gacha, food toy, not for sale, bonus, rare, amusement, not for sale, old, nostalgic, game, goods, rubber, rubber strap, rubber key, collection, anime, manga, old, nostalgic, goods, acrylic key, acrylic, keychain, Sega, SEGA