Scenario select: Hold Up + Right + II and press
Run the PC Engine CD boot screen. After the "Kogado"
logo disappears and the opening begins, hold Run when the
temple begins to crumble. Keep the button held as the game displays
the title screen and automatically selects the "Start"
option. Release Run then, hold Run again at the
introduction sequence to skip it. Release Run and begin
game play. Press Run to pause game play, select last option,
then choose the first option twice to save the game. Reset the
system. When back at the title screen, select the "Continue"
option. If done correctly, when you select the first saved game
slot all scenarios will be unlocked.