It has buttons, computer chips, as screen, and a beef dispenser. The beef dispenser is used for beefy games (Such as Malleo Kart 64) to make them compatible with the Game Boi Advance. The beef dispenser is only purchasable by getting Cows: The Shame, which comes with a beef dispenser. The beef dispenser could also give you a Big Mac, and a game called Cows: The Shame 2: Cow's Pointless Adventure