At the Character Selection Screen in Training Mode, enter the appropriate code:
|Gold Dural||Start + A + Y|
|Silver Dural||Start + A + X|
On the Character Selection Screen, press Down, Up, Right, Left, Start. Dural will appear and she may be selected normally. Press A for silver Dural, press Start + A to play as Gold Dural.
Play as Alphabet - Choose Akira on the character selection screen and press Start. Now highlight Lion and press Start. Then highlight Pai and press Start. Then select any character and press A to choose Alphabet.
Play against Alphabet - Choose Akira on the character selection screen and press Start. Now highlight Lau and press Start. Then highlight Pai, hold Start, and press X to fight against Alphabet.
Arcade Backgrounds - In training, normal or team battle mode you can change the backgrounds to the original arcade versions by letting the time run out in the stage select screen.
New Training Mode Backgrounds - Select training mode, then hold Start and press A at the Stage Selection Screen.
Alternate stage backgrounds - At the Stage Selection Screen, hold Start + B.
Hold Start while selecting a character to see their alternate costume.
Press B before the instant replay begins.
Hold X + Start during the instant replay.
Press and hold Start on both the first and second player controls at the screen that shows the Sega logo. Keep holding both start buttons until you hear the music begin to play.
Pause the game and press X + Y.