The Transfer Pak is a removable accessory for the Nintendo 64 controller that fits into its expansion port. When connected, it allows for the transfer of data between supported Nintendo 64 (N64) games and Game Boy or Game Boy Color (GBC) games. By using the Transfer Pak, players can unlock additional content in compatible games; the Pokémon Stadium games, with which the Transfer Pak was initially bundled for sale, also feature the ability to emulate specific Game Boy Pokémon titles for play on the N64. The Transfer Pak was supported by roughly 20 N64 games worldwide, only six of which supported it outside of Japan. Several games which initially planned to utilize the accessory were either cancelled or had the functionality removed. As a result, while recognized as one of the first examples of connectivity between Nintendo's home consoles and handhelds, the Transfer Pak has come to be retrospectively regarded as largely unnecessary by members of the gaming press. History The Transfer Pak was first revealed at Nintendo's Space World 1997 trade show. It was released in Japan in August 1998 as a pack-in with the game Pocket Monsters' Stadium, which required the Transfer Pak for many of its features. In North America and Europe, the Transfer Pak was similarly bundled with Pokémon Stadium, which released in February and April 2000 respectively. Unlike the Super Game Boy peripheral, which allowed Game Boy games to be played on the Super Nintendo Entertainment System, the Transfer Pak's primary use was not to play Game Boy games on the Nintendo 64. Nintendo and Intelligent Systems developed a separate accessory to serve this function, the Wide-Boy64, but it did not receive a wide release and was instead only available to game developers and members of the gaming press. However, the Pokémon Stadium games included a built-in Game Boy emulator, allowing users to play compatible Pokémon games on the N64 by inserting them into the Transfer Pak. In 2019, an independent software developer created a ROM hack of Pokémon Stadium 2 that expanded the emulator’s compatibility to include other Game Boy games. Some games with planned Transfer Pak support went unreleased. One of these was Cabbage, a Nintendo 64DD breeding simulator game, which would have featured the Transfer Pak as a major gameplay component. The game was planned to allow players to transfer their pet to the Game Boy and continue to nurture it throughout