Primal Rage 
Contributed by - Richard

Cheat mode:
Press Left(3), Right(2), Left(2), Right(3), Left, Right at the main
menu. A cheat selection will appear. 

Alternate character color:
Press Y + X + B + A when selecting a fighter on the character
selection screen. 

View ending:
Set the difficulty level to ten and enable gore. Complete the game in
one player mode to view the ending.