X-Men: Children of the Atom
Play as Akuma:
For Player One: Put the cursor on Spiral and let it rest there for three seconds. Then move the cursor over the following fighters in this order without stopping: Silver Samurai, Psylocke, Colossus, Iceman, Colossus, Wolverine, Omega Red, then move the cursor onto Silver Samurai and let it rest for three seconds. Then press buttons A, C, and Z simultaneously. Akuma drops down.
For Player Two:
Put the cursor on Storm and let it rest there for three seconds. Then move the cursor over the following fighters in this order without stopping: Cyclops, Colossus, Iceman, Sentinel, Omega Red, Wolverine, Psylocke, Silver Samurai, then move the cursor onto Spiral and let it rest for three seconds. Then press buttons A, C, and Z simultaneously. Akuma drops down.
Short Cut Mode:(Note: This only works in the "Versus Mode.")
Wait until you get to the "Result" screen after a match. At the "Result" screen, highlight the word "Continue," and press and hold the top L and R buttons. Keep the buttons held down and press Start. This takes you to a "Short Cut" screen where you can switch fighters, change the handicap, and select the stage.
Screen Sizes:
At the title screen, highlihgt Options, then choose Difficulty. Repeatedly press Up, then Down until a new option, Screen Size, appears at the bottom. Now you can play with Saturn or Arcade screen sizes.