From TV Animation One Piece - Maboroshi No Grand Line Boukenki! ROM Download for Gameboy Color (GBC). From TV Animation One Piece - Maboroshi No Grand Line Boukenki! game is available to play online and download only on Roms Games. From TV Animation One Piece - Maboroshi No Grand Line Boukenki! ROM for Gameboy Color download requires an emulator to play the game offline. This Game is Japanese Version and is the highest quality available.