Does Luffy really need that many costumes?
One Piece: Pirate Warriors 3 brings back the hectic battles of the previous two games, along with another extensive roster. Of course, it wouldn’t be a proper Pirate Warriors game if the characters didn’t have different costumes to change into. After all, everyone knows that it’s the clothes that make the fighter.
To unlock costumes for characters, you have to make sure to complete certain missions. For the ones that state you must complete a One Piece: Pirate Warriors 3 mission with a specific character, you will have to first unlock that character.
When you unlock a costume in One Piece Pirate: Warriors 3, you will be rewarded in one of three ways. It will either be unlocked immediately, given to you in the form of a coin, or unlocked in the shop where you can purchase it using Beli. Also, keep in mind that all costumes are obtained within One Piece: Pirate Warrior 3‘s Legend Log unless specifically stated otherwise.