Marvel Super Heroes

Turbo mode:
Enable shortcuts and enter the character selection screen. Hold Start and press an attack button to select a character. Continue to hold Start and select a handicap and level with an attack button. Release Start after the match begins. Note: For two player mode, hold Start on both controllers until the match begins.

Fight as Dr. Doom:
Complete and save the game under the default settings. Turn off the "Shortcuts" option. Enter the character selection screen. Press Down, then press Down again and hold the button. Quickly press A, B, C in that order, holding each button down as the next button is pressed. At this point, Down + A + B + C should be held on the controller. The words "Captain America" will be spoken, but Dr. Doom's face and name will appear.

Fight as Thanos:
Complete and save the game under the default settings. Turn off the "Shortcuts" option. Enter the character selection screen. Press Up, then press Up again and hold the button. Quickly press Z, Y, X in that order, holding each button down as the next button is pressed. At this point, Up + Z + Y + X should be held on the controller. The words "Spider Man" will be spoken, but Thanos' face and name will appear.

Fight as Anita (Japanese version):
Enable the "Fight as Dr. Doom" and "Fight as Thanos" codes. Turn off the "Shortcuts" option. Enter the character selection screen with the default controller settings. Press Up, Right, Down, Left, Up, Right, Down, Left, Up, then quickly press X, Y, Z in that order, holding each button down as the next button is pressed. Anita will appear as a selectable character.

Disable vs. mode power gems:
Press L + R on controllers one and two before the match begins. The phrase "No Gems" will appear to confirm correct code entry.

Random character select:
Hold Left or Right until the pointer begins moving quickly at the character selection screen. Press any button to select a random character.

Alternate costume:
Turn off the "Shortcuts" option. Hold Up (if your character is in the upper row) or Down (if your character is in the lower row) for approximately three seconds and press any button at the character selection screen.

Continue fighting:
Hold L + R after the last round of the match ends to continue hitting your opponent.

Throw pumpkins:
Use a reality gem, then press L + R.