All cheats for this game by platform:
SNES
Primary Collection of Cheats
Boss endurance mode
Press [Down], [X], [Up], [B], [L],
[R], [Left], [A] on controller two at the logo
screen. A sound will confirm correct code entry. The text "Boss
Endurance Mode" will appear when game play begins. In this
mode, every Boss will be fought in order.