Play as Bruce Buffer
 Win UFC mode with all characters to unlock Bruce Buffer.
 
 
 Play as John McCarthy
 Win UFC mode with Bruce Buffer to unlock John McCarthy.
 
 
 Play as Mario Yamasaki
 Win UFC mode with John McCarthy to unlock Mario Yamasaki.
 
 
 Play as The Cat
 Win four consecutive matches in arcade mode to unlock The Cat.
 
 
 Play as Femme Fatale
 Win eight consecutive matches in arcade mode to unlock Femme Fatale.
 
 
 Play as Ice-T
 Win sixteen consecutive matches in arcade mode to unlock Ice-T.
 
 
 Play as Mask
 Win twenty seven consecutive matches in arcade mode to unlock Mask.
 
 
 Fourth Of July Mode
 Set the system date to July 4 to unlock Homer in his car. 
 Press L and he will shoot fireworks out the window.