Pokémon Pokopia was the first Nintendo-published title released physically on a Game-Key Card.
Its physical edition used a Game-Key Card, a format associated with Nintendo Switch 2 software. The card contains a key that allows the game data to be downloaded, rather than functioning like a traditional cartridge containing the complete game.
This distinction is separate from the game’s digital edition, which was sold through the Nintendo eShop. Pokopia is also identified as the first Pokémon game released exclusively for Nintendo Switch 2, so its physical format became part of its historical significance. Players may confuse the title with other Switch 2 launch-era games, but the first Nintendo-published Game-Key Card distinction belongs specifically to Pokémon Pokopia.