Mortal Kombat 4

Cheat option:
Highlight the "Continue" selection on the options screen. Hold [Low Kick] + [Block] until the cheat option appears and the word "Outstanding" is spoken. The cheat options include "Endings", "Fatalities 1", "Fatalities 2", and "Level Fatalities". The "Level Fatalities" option will allow the spike fatality to be executed on any level.
Eric Kenworthy.

Go to the practice menu. Highlight the "Difficulty" selection and hold [Low Kick] + [Block] until the cheat menu appears. Note: You can only choose one option ("Endings", "Fatalities 1", or "Fatalities 2"). Selecting them simultaneously has no effect.
Paul Guiang.

Note: After enabling one of fatality option, at the end of a match when "Finish him" is spoken, press [Down] + [High Punch] to execute the corresponding fatality.
jagdish sahu.

Alternate costumes:
Press [Start] + any button to rotate the select screen pictures two times to enable each character's second costume, except for Sonya and Tanya. The select screen pictures must be rotated three times for those characters.

Fight as Meat:
Enter "Group Mode" and successfully complete the game with all sixteen characters. After this has been accomplished, select any character and begin a match. Your character will playing as Meat with all the moves of the character that was selected.
Eric Kenworthy.

Fight as Goro:
Successfully complete the game with Shinnok. Change Shinnok's costume, then select the invisible icon at the bottom of the character selection screen. Press [Up] [Up] [Up] [Left] to highlight Shinnok's icon, then press [Run] + [Block].
Eric Kenworthy.

Fight as Noob Saibot:
Successfully complete the game with Reiko. Enter the 012 012 Kombat code in versus mode. Exit this match and enter the character selection screen. Select the invisible icon at the bottom of the character selection screen. Press [Up] [Up] [Left] to highlight Reiko's icon, then press [Run] + [Block].
Eric Kenworthy.

View biographies:
Enter "Kombat Theatre" mode, highlight the desired character, and press [Block].
Eric Kenworthy.

Kombat Kodes:
Enter one of the following codes to activate the corresponding effect.

Effect	Kombat Kode
Free weapon	111-111
Throwing disabled	100-100
Start with weapons drawn	444-444
No background music	666-666
Last hit causes loser to explode	050-050
Random weapons	222-222
Start with energy slightly above "Danger" level	123-123
Weapons drop all over the stage	555-555
No rain on the Wind World stage	060-060
Both players never drop weapons	002-002
Rains blood at the "Wind World" stage	020-020
No maximum damage limit for combos	010-010
No throws and maximum damage combo limit	110-110
Play at "Goro's Lair" stage	011-011
Play at "The Well" stage	022-022
Play at "The Elder Gods" stage	033-033
Play at "The Tomb" stage	044-044
Play at "Wind World" stage	055-055
Play at "Reptile's Lair" stage	066-066
Play at "Shaolin Temple" stage	101-101
Play at "Living Forest" stage	202-202
Play at "The Prison" stage	303-303
Unlimited Run meter	001-001
Play at "Ice Pit" stage	313-313
Big head mode	321-321