Operation not confirmed. I don't have two Game Boy Colors or Game Boy Pockets on hand. Communication cable compatible with Pikachu-designed Game Boy Color / Game Boy Pocket - Model: Pikachu-designed communication cable - Color: Yellow - Features: Communication cable with Pokémon characters Thank you for viewing. I think there are various uses, such as Pokémon trading, Momotaro Dentetsu communication, and Puyo Puyo battles. However, operation is unconfirmed. I have kept it carefully stored in a candy tin until now. It might be very valuable, but it has some dirt, so I'll sell it cheap.