For your consideration, here is the Taz-Mania Sega Game Gear Game Cartridge with case, no. 670-2527, from Sega, made in Japan. The game cartridge is in excellent shape. It looks brand new and has a nice shiny label. I have not tested it. Item pictured is the actual item up for sale and comes from a non-smoking household. (147.151o-.5bx)