: The first in the series to arrive on PC, covering the story from the beginning up to the Dressrosa Arc. One Piece: Pirate Warriors 4

If you downloaded a "PC version" from a third-party website and it requires a registration code, product key, or "unlock code":

: It significantly expanded the playable roster from the first game, including characters like Eneru, Crocodile, and Perona for the first time. Completing the main story and side "Crew Missions" can take roughly 32 to 57 hours depending on your playstyle.

The story of One Piece: Pirate Warriors 2 (OPPW2) features a completely original, non-canon plot known as the "Dream Story."

If you are a completionist, however, Pirate Warriors 2 offers unique movesets for characters like Smoker, Tashigi, and Perona that never returned in later sequels.

Also, check if there's any confusion in the user's query. Maybe they're having trouble activating a code they already have, so I should ask for more details if needed. But since the query is about obtaining a code, focus on that.