Pokémon Yellow Version/Connectivity

Players may trade Pokémon between two cartridges or battle with another cartridge using a Game Boy Game Link Cable. To take full advantage of this feature, several Pokémon are exclusive to other Generation I games and others require trading to evolve, making trading necessary to complete the Pokédex. The Japanese version can trade and battle with Japanese versions of, , and Yellow; the Western versions can trade and battle with Western versions of , and Yellow. It can also trade with via the Time Capsule. Pokémon Yellow is completely incompatible with games from Generation III onward.

Trades between Pokémon games in different languages are possible; however, a Japanese game cannot connect with a non-Japanese game without causing corruption. This is due to the fact that the games cannot automatically translate the Pokémon data from Japanese to a different language or vice versa, since neither game fully encodes both and the  (only encoding one fully and the other partially). If a battle between a Japanese game and a non-Japanese game is attempted, the battle simply does not work, with the save files left unharmed.

Pokémon Yellow is compatible with the Japan-exclusive, Western 🏴󠁧󠁢󠁥󠁮󠁧󠁿, and. While link battles are not possible directly between Pokémon Yellow and the Generation II games, a player may challenge a Generation II game using Pokémon Stadium 2.

Pokémon Yellow is also compatible with the Game Boy Printer. It is possible to print Pokédex entries, the Diploma, Pokémon Storage System Boxes, Party Pokémon, and the Pikachu's Beach high score.