Level Select:
To unlock level select, at the title screen hold B and press Start. To select a level, choose a round at the options menu then hold A Start at the title screen.
Never Die:
To avoid dying, after you die hold A and press start repeatedly. Your will appear on the screen where you died.
Jump Higher:
To jump higher, press and hold the UP while you jump.
Monster Select:
To unlock an option that allows you to select the beast you want for each level, immediately after you turn on the system hold down these buttons: Down Left A B C. A menu will appear where you can select from the beasts.
Sound Test:
To unlock the Sound Test menu, at the title screen, press and hold A C Up- Right Start.
Move the Credits:
When the credits appear after you rescue Athene, press kick or punch to make them scroll downwards.
Two-Player Mode:
To activate Two-Player mode, press start on controller two.