We are still searching for game pictures and screenshots for One Piece: Dragon Dream (Gameboy Advance). We do not have any cheats, codes, or hints yet.

Successfully complete the game to unlock the bonus levels.

Successfully complete the game, then press L, R, L, R, A, B, Start during the credits. A sound will confirm correct code entry. Start a new game, then hold R + L to exchange Luffy with Hatchan.

Beat the game, you will see them in the credits.