If you're looking to dive back into the Kanto region with your favorite yellow companion, understanding the technical side of Nintendo Switch game files—NSP, XCI, and UPD—is essential for a smooth experience. Whether you're using a modded console or an emulator, getting these files to work correctly ensures you can enjoy everything from the updated graphics to the unique Pokémon GO integration.
Before you start, it’s important to know which file type best fits your needs. Both serve as digital backups of the game but are handled differently by the system. pokemon lets go pikachu switch nsp xci upd work