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One Piece: Chopper's Big Adventure cover art
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One Piece: Chopper's Big Adventure

Game

The final One Piece title on WonderSwan Color, a role-playing game that turns the whole crew into animals and leaves only Chopper himself, sending him through dungeons to reverse the curse and find its cause.

Genre: Role-playing game
Developer: Bandai
Publisher: Bandai
Release Year: 2003
Japan Release Date: 2003-10-16
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Story and Setting

The Straw Hats land on a strange island where every crewmate suddenly turns into an animal. Luffy becomes a monkey, Zoro a tiger, Sanji a fox, Nami a cat, Usopp a kappa, and Robin a parrot, while Chopper alone keeps his usual form. He has to restore his friends and uncover what caused the transformations.
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Gameplay

The role-playing structure centers on Chopper as he travels and explores dungeons, taking on monsters and bosses. The rest of the crew back him up as support characters during the dungeon fights.
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Legacy

Bandai released the game for the WonderSwan Color in Japan on October 16, 2003. It is the last One Piece title made for the handheld and did not leave Japan.
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Sources & Information

Looking for more on One Piece: Chopper's Big Adventure? The One Piece Wiki on Fandom has a dedicated page with community notes.

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This content is original writing by Daddy Jim Headquarters based on the One Piece anime series, manga, and official materials. Episode and chapter references are cited where applicable.

Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:

  • Movie pages: theatrical posters and key visuals, credited to Toei Animation and Toei Company.
  • Game pages: official box art for the One Piece console and mobile games, credited to Bandai Namco.
  • Manga chapter pages: Jump Comics volume covers, credited to Shueisha and Eiichiro Oda.

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