Bubble Symphony Game select: Press Up, C, Right, B, A, Left, C, Down at the title screen to select between normal and super game modes. A sound will confirm correct code entry. Play as human Rainbow Island characters: Press Left, Down, Up, B, Right, C, A, Right at the title screen. A sound will confirm correct code entry. Bonus options: Press Left, Right, Left, Right, A, B, C, B at the main menu. The following extra options will be available: Super game toggle, language select, sound test, sound volume, and audio mode. A sound will confirm correct code entry. Always access secret rooms: Press B, A, B, A, B, A, Left, C at the title screen. A sound will confirm correct code entry. No background graphics, new music: Press A, B, A, B. A, B, Right, C or Left, A, Left, C, Left, B, Left, C at the title screen. A sound will confirm correct code entry. Turbo mode: Press Down, A, B, C, Left, Right, Left, C at the title screen. A sound will confirm correct code entry.