Simulation game for Game Boy Color, play with cute hamsters! I bought this new and have kept it stored at home for a long time. No instruction manual. Operation not confirmed. There are stains on the inside of the outer box and the case that holds the software due to aging. The price sticker from when I bought it is on the outer box. - Title: Hamtaro - Game System: Game Boy Color - Genre: Simulation - Publisher: Namco - Target Age: All ages - Language: Japanese *Also selling a copy of Hamster Club with the box and instruction manual.