One Piece - Dai Kaizoku Colosseum (ワンピース大海賊コロシアム), is a 3DS game developed by Ganbarion and published by Namco Bandai Games. The game is based on the popular One Piece anime and manga series. It is a fighting game in which players take control of characters from the series and battle against each other. The game features a variety of characters from the series, including Luffy, Zoro, Sanji, Nami, and many more. Players can battle against each other or against computer-controlled opponents. The game also features a story mode, which follows the story of the One Piece anime and manga series. Players can also customize their characters with a variety of costumes and accessories. One Piece - Dai Kaizoku Colosseum is a great game for fans of the One Piece series, as it allows them to experience the characters and story of the series in a new and exciting way.