Mortal Kombat

10 credits

In the Japanese version, press Left, Up, Right, Up, Left, Up when Goro appears at the Acclaim logo. A sound will confirm correct code entry. The game will now start with 10 instead of 4 credits.

Fight as Goro

Successfully complete the game. When "The End" message appears, quickly hold Up/Left + Select + A until the title screen appears. Press Start to began a new game.

Fight as Reptile

Select any character and defeat Shang Tsung. When he releases all the fighters souls, hold L + R when Sub-Zero appears. Keep holding L + R until the title screen appears. Start a new game. At the fighter selection screen, Reptile's face will be at the top middle of the fighter selection screen.