From TV Animation One Piece: Maboroshi no Grand Line Boukenki! is an action-adventure game for the Game Boy Color based on the One Piece anime. Players navigate the Straw Hat Pirates through various arcs, including the Loguetown, Whiskey Peak, and Warship Island arcs, engaging in battles against notable foes such as Smoker and Nelson Royale while uncovering treasures.
The game follows the anime storyline from the beginning of the Loguetown Arc to the end of the Whiskey Peak Arc, including the Warship Island Arc. Along their way, the Straw Hat Pirates fight enemies like Smoker, Nelson Royale and others.