Real Bout Fatal Fury Special Cheats
for NeoGeo

Shadow Characters

At the character select, move to the character you choose to play as, then do the following: Hold the start button (don't let go of it!) Tap buttons in sequence: B, B, C, C. Now hold down the B button for about a second. While still holding B (and Start), press and hold the C button. While holding these three buttons, press A or D to select your character in Shadow form. You may now let go of all the buttons. (A or D is used to select the color of your character's clothes)

Play as Ex

At the Character Select screen, highlight Andy, Billy, Tung, or Mary, then press and hold START. While holding START press B, B, C, C then press and hold B, wait for one second, press and hold C, and wait one more second. If you did it correctly, Ex should appear.