Secret Character Codes (Done at title Screen):
The Great Muta: O,R,T,U,S,L,X,D,X,D,S,L,T,U,O,R, and select. Go to 3rd guy 
down from top on character screen and push select.

Power Warrior: s,x,s,x,c,t,c,t,u,d,l,r, and select. Go to 7th guy from top and 
press select.

Kero Chan (the announcer) L1,L1,L2,R2,R2,R1,t,d,x,u and select. Go to 9th 
man from the top and push select.
Tiger (referee) u,d,l,r,t,x,s,c,L1,R1,L2,R2 and select. Go to 11th guy and 
push select.