Total Carnage Cheats for SNES
Earn first place on the High Score list and enter your name as FIRE. Then, you can choose your level.
To access this secret, you have to be on the fifth listing on the high score list. As a name, enter YAWDIM and press Right. A message should appear, and if you push Y, B, X, or A, you'll hear voices that were in the original arcade version. YAWDIM is MIDWAY spelled backwards.