Cheats

Doctor Doom
Complete the arcade game at the default settings. 
Save the game to your memory card and input 
this code at your Character select screen: 
Tap Down then press and hold: 
Down, Fierce kick, medium kick, light kick 
in that order. (You will hear Captain America, 
but you'll be doctor doom.) 

Thanos
Input this code at your Character select screen: 
Tap Up then press and hold: 
Up, Fierce punch, medium punch, light punch 
in that order. (You will hear Spider-Man, 
but you'll be doctor doom.) 

Anita 
When both the above are enabled, you can input 
this to get Anita: 
Press: Up, Right, Down, Left, Up, right, down, left 
then press and hold: Up, Light Punch, Medium Punch, 
Fierce punch. 

Change clothes 
Hold down if the character is at the bottom of the select bar, 
or up if at the top. 

Floor Fighter 
Press select when the battle is over. You can now attack your 
beaten opponent. 

Lippy Move
Tap Down, Down, Select, to activate your characters taunt move. 

Halloween 
When you've activated a reality gem, you can press Select to lob 
laughing pumpkins at your opponent.