Player 2 Match Skip: During Story or Vs. CPU modes, the second player can skip to to the Vs. Player mode's player selection screen by pressing Start on their controller. This will not work during Story Mode's Bonus Game, however; to make it work during this section, you must press Up, A, and B together on Controller 2.

Change the CPU Strength in Versus Mode: In Vs CPU mode, when you selected you character and your opponent, in the stage screen, go to the strength section, you can select the opponent strength by pressing left or right on the Player´s 2 controller

Alternate Ending: Beat the game on the hardest difficulty.

Play as Hothead VS Hothead: In the Player Select screen, choose to play as any character (player 1) EXCEPT Hothead. Next, the game will ask you to select your opponent (CPU) and here is where you choose Hothead. Now play the game normally.  It doesn't matter who wins the match.  When the match is over, go for a rematch. This time, choose Hothead to be your character. The game will once again ask you for your opponent, but look and behold! The CPU cursor is already on Hothead. Choose him and enjoy the forbidden battle.

Cheat Codes (Super Nintendo)

Get 10 credits: On Controller 2, press: B, B, B, A, A, A, X, X, X, X, X, X, X

Play as two new characters during VS Mode: On controller 2, press: X, Up, Y, Left, B, Down, A, Right, X, Up. Go to Vs. Mode and press left on controller 1

Speed level 3 in options menu: On controller 2, press: Up, up, down, down, left, right, left, right, B, A

Two new levels in VS Mode: On controller 2, press: L, R, L, R, L, R, A

Ultimate Bar in Story Mode: On controller 2 press: Up, Left, Down, Right, X, Y, B, A, X, Y, B, A, and X

Super moves in Story Mode: Press Up, Left, Down, Right, X, Y, B, A, X, Y, B, A, X

Character endings: Beat the game on level 3 or higher to show your character's ending.

Cheat Codes (Sega Genesis)