The Transfer Pak[e] (NUS-019) plugs into the controller to transfer data between supported Nintendo 64 games and Game Boy or Game Boy Color games.[14] It has a Game Boy Color slot and a part that fits onto the expansion port of the N64 controller. It was included with the game Pokémon Stadium, as the game's main feature is importing Pokémon teams from Game Boy games.
In Japan it is called "64GB" as Shigeru Miyamoto described at Nintendo's Space World 1997 trade show. It was a key feature of the infamous creature raising game prototype that was never released, Cabbage.[23]
Pokémon Stadium and Pokémon Stadium 2 are games that rely heavily on the Transfer Pak. Pokémon Stadium also includes a "GB Tower" mode for playing Pokémon Red, Blue, and Yellow directly on the Nintendo 64 via a built-in Game Boy emulator.
| Transfer Pak compatible games | |
| Nintendo 64 game | Game Boy (Color) game |
|---|---|
| Cabbage (64DD, unreleased)[28][29][30][31] | |
| Choro Q 64 2: Hachamecha Grand Prix Race | Choro Q Hyper Customizable GB |
| DT Bloodmasters (64DD, unreleased) | |
| Jikkyō Powerful Pro Yakyū 6 | Power Pro Kun Pocket |
| Jikkyō Powerful Pro Yakyū 2000 | Power Pro Kun Pocket 2 |
| Mario Artist: Talent Studio[33] | Game Boy Camera[25] |
| Mario Golf | Mario Golf |
| Mario Tennis | Mario Tennis |
| Mickey's Speedway USA | Mickey's Speedway USA |
| Nushi Tsuri 64: Shiokaze ni Notte | Kawa no Nushi Tsuri 4 |
| PD Ultraman Battle Collection 64 | Any |
| Perfect Dark | Perfect Dark |
| Pocket Monsters Stadium | Pocket Monsters Red, Green, and Blue versions |
| Pokémon Stadium | Pokémon Red, Blue and Yellow versions |
| Pokémon Stadium 2 | Pokémon Red, Blue, Yellow, Pokémon Gold, Silver, and Crystal versions |
| Puyo Puyo 'N Party | Pocket Puyo Puyo SUN |
| Robot Ponkottsu 64: Nanatsu no Umi no Caramel | Robopon Sun, Star, and Moon versions |
| Super B-Daman: Battle Phoenix 64 | Super B-Daman: Fighting Phoenix |
| Super Robot Wars 64 | Super Robot Taisen Link Battler |
| Transformers: Beast Wars Transmetals | Kettō Transformers Beast Wars: Beast Senshi Saikyō Ketteisen |
