Cheat mode:
Hold L and press C-UP, C-RIGHT, C-LEFT, C-DOWN, B, A(2) at the character
selection screen. The screen will flash to confirm correct code entry.
Press B to exit, then enter the options menu. Choose the "Secret Options"
selection to access different body sizes, voices, backgrounds, and other
options.

Random fighter select:
Hold L + R at the character selection screen.

Fight as Sumo Santa:
Hold L and press A, C-DOWN, C-RIGHT, C-UP, C-LEFT, B at the character
selection screen.

Fight as Dr. Kiln:
Hold L and press B, C-LEFT, C-UP, C-RIGHT, C-DOWN, A at the character
selection screen.

Fight as Boogerman:
Hold L and press UP, RIGHT, DOWN, LEFT, RIGHT, Left at the character
selection screen.

Alternate costume colors:
Press A for color scheme one or C-DOWN for color scheme two at the
character selection screen, then press B to exit.

Same costume colors:
Press C-UP on either controller to select any fighter at the character
selection screen. Have the other player highlight the same character and
allow the timer to reach zero. Both fighters will be the same color
during the match.

Stage select:
Select two player mode, then press C-LEFT or C-RIGHT at the screen that
displays the current stage