Pokemon Yellow Version [decrypted]: 3ds (world) Rom

: In the original, this was locked behind a special "Surfing Pikachu" event. In the 3DS release, it is accessible to your starter Pikachu without needing the move Surf.

: The "World" designation typically indicates a region-free release or a standard English-language version compatible with hardware from multiple regions. Pokemon Yellow Version [Decrypted] 3DS (WORLD) ROM

: The "Decrypted 3DS ROM" refers to a .cia or .3ds file format that has been extracted from the Nintendo eShop's encrypted wrappers, allowing it to be played on 3DS hardware via homebrew or through emulators. : In the original, this was locked behind