Secret Characters
     At the Character Selection screen, hold Z or R, then enter one of
the  following  "Codes".  When  finished,  press  R on the ? to scroll
through the characters:

Character               Code
Earthwim Jim            LP, MP, HP, HK, MK, HP
Boogerman               LP, LP, HK, HK, MP, HK
Sumo Santa              LK, HK, LK, HK, MK, HP
High Five               HP, MK, MP, HK, LP, LK