One Piece Pirate Warriors 4 (OPPW4) remains one of the premier musou experiences on the Nintendo Switch, offering fast-paced action across the vast, ever-expanding world of Eiichiro Oda's masterpiece. However, for players using NSP (Nintendo Submission Package) formats to manage their digital library, keeping the game updated with the latest DLC—including character packs, story missions, and costume updates—can be confusing.
If you’re using a PC Switch emulator instead of a hacked console, the process is simpler but still requires attention to detail. one piece pirate warriors 4 nsp update dlc work