At the character selection screen in Arcade mode, hold Down/Left + B and press Start. A
number that corresponds to the starting level will appear in the upper left corner of the
screen. Use the D-pad to change this value.

Enter "MUSEUM" as a password.

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.