I really struggle to categorize and review this film. It's a very specific, and intense film from start to finish, clearly a well crafted and directed work.
The issue I have is that, to me, it doesn't come across as "One Piece" story (itself a shonen style story). It's a terrifying and gripping narrative, where the Straw Hat crew are the players, detectives, and ultimately victims to the antagonist's machinations, which makes for an interesting experience. However the stakes and the imagery used to reveal what's occurring are perhaps to intense. The 3rd party characters also own large chunks of narrative, which in turn also reduce the Straw Hats down to nothing more than being "at risk" to drive Luffy into the protagonist role.
The issue I have is that, to me, it doesn't come across as "One Piece" story (itself a shonen style story). It's a terrifying and gripping narrative, where the Straw Hat crew are the players, detectives, and ultimately victims to the antagonist's machinations, which makes for an interesting experience. However the stakes and the imagery used to reveal what's occurring are perhaps to intense. The 3rd party characters also own large chunks of narrative, which in turn also reduce the Straw Hats down to nothing more than being "at risk" to drive Luffy into the protagonist role.