Story: The story is relatively simple, though I don't think it is necessarily worse than any of the previous movies. I don't actually have much to complain about in terms of concept. It gets the job done, but nothing more. There were plenty of questionable aspects to the whole thing. It's riddled with plot holes, making it sort of weird to watch.
Art: This is probably the worst looking One Piece film. I know the anime was struggling in terms of pacing at this time, and it shows bright as day here. The animation was really rough throughout most of the film, utilizing a lot of noticeable shortcuts. The most animated things here were Nami's breasts, shaking in just the most uncomfortable and awkward way possible. The artwork is also a complete mess, half the time resulting in off model and sloppy characters. The blatant and unnecessary CGI looked terrible and made me laugh at scenes I clearly wasn't supposed to.
I know I shouldn't let a Mamoru Hosuda film set my standard for future films. But One Piece Movie 6 set the bar so high in terms of visual quality, anything less would naturally leave me disappointing. In comparison, this film may actually be the worst looking of them all. Films 1, 2, and 3 were much shorter and a lot more conservative in terms of visual spectacle, so they don't flop nearly as badly. Movie 5 still looks bad, but at least it had some interesting uses of lighting and colour in places.
Characters: This film's alternate title is "Nami beats up Luffy the whole time as he figures everything out through happenstance." Luffy is slightly out of character for most of the film, doing things that seem like him on the surface, but end up not feeling nearly as natural as they should. The other Straw Hats fare better in general, though Nami is very much on edge for most of the movie. The villain is a complete joke, although the film acknowledges this and uses it as part of the joke. This doesn't really change the fact that he is completely not intimidating. You can't just set up how stupid someone is just to try and make me care about an emotional climax. I don't believe the fact that the Straw Hats should have struggled with any of this. Any problems that arose were products of negligence.
Conclusion: In the end, this film falls on it's face and fails hard. It's boring, stupid, and ugly. While I don't think it's necessarily my least favorite One Piece film (that title going to films 5, 3, and 1 in descending order) it's probably the most pathetic. I feel very little towards it aside from mild annoyance and the conviction to never waste my time with it again.
