Mortal Kombat Cheat Codes

Blood code (Genesis port) (Misc)

At the 'Code of Honor' screen enter A, B, A, C, A, B, B to turn on blood/fatalities in the censored-then-uncensored Genesis version. The SNES port has no blood code (blood was cut).

ABACABB

Arcade/Genesis notes: the blood code is entered at the Code of Honor screen (Genesis version only). Reptile conditions apply to a VS or single-player Pit match.

Hidden Reptile fight (arcade) (Easter Egg)

In The Pit stage: win a double flawless victory AND finish with a fatality AND never press Block, when the moon silhouette passes — Reptile drops down to fight you (arcade conditions; ports simplified them).

Double flawless + fatality in The Pit, no blocking

Arcade/Genesis notes: the blood code is entered at the Code of Honor screen (Genesis version only). Reptile conditions apply to a VS or single-player Pit match.

Toasty! — MK2 note (Tips)

The famous Dan Forden 'Toasty!' head pop-up is NOT in MK1 — it debuted in Mortal Kombat II. Purely an easter egg there too.

Arcade/Genesis notes: the blood code is entered at the Code of Honor screen (Genesis version only). Reptile conditions apply to a VS or single-player Pit match.