Unlock Classic Duke and Scarlett
     At  the  game's  title screen, enter the following codes with the
D-pad  to  unlock Classic Uniforms. A "Yo Joe!" sound effect will play
if  you  entered  the  code  correctly.  This unlocked costume will be
available from the start of the game.

Classic Duke: [LEFT], [UP], [-], [UP], [RIGHT], [+]

Classic Scarlett: [RIGHT], [UP], [DOWN], [DOWN], [+]