Cheat Codes:
Note: Button presses are in Genesis format.

Options menu - At the title screen, hold B and press Start.
Level select - Enable the "Options menu" code. Select a level from the options menu and hold A + Start at the title screen to begin game play at that location.
Beast select - At the title screen, hold A + B + C + Down/Left and press Start. A menu that allows selection of the beast for each round will appear. Use the D-pad to change beasts and Start to exit the menu.
Sound test - At the title screen, hold A + C + Up/Right and press Start.

Continue game play:
After losing a life, hold A and tap Start until restarting at the last game location played.