Mortal Kombat Gold Cheat Codes for Dreamcast

Cheat menu
At the Press Start Button screen, quickly press Up(2), Down(2), Left(2), Right(2). If you entered the code correctly, you will hear a laugh and the word "Outstanding" will be spoken. Then, enter the options screen and press L + R to display a cheat menu with the following options:
Play as Goro
Enable the Cheat menu code. Then at the character selection screen, highlight the Hidden icon at the bottom of the screen, hold L + R and press Up, Left, A.

Play as Noob Saibot
Enable the Cheat menu code. Then at the character selection screen, highlight the Hidden icon at the bottom of the screen, hold L + R and press Up(2), Left(3), A.

Play as Sektor
Enable the Cheat menu code. Then at the character selection screen, highlight the Hidden icon at the bottom of the screen, hold L + R and press Up(4), Left(4), A.

Alternate costumes
At the character selection screen, highlight a fighter, hold Start and press any button once to rotate their select screen picture and enable their second costume, except for Sonya and Tanya. The select screen pictures must be rotated three times for those characters. Rotate any other character’s picture two times to enable their third costume.

View Character's Bios
Go to "Kombat Theater", Highlight the character's bio you want to view. Now press "L" + "R" triggers! Highlighting the opening sequence will show you Goro's bio.

Kombat codes
Enter one of the following codes at the versus mode screen to activate the corresponding cheat function. There are two three-digit icon boxes at the bottom of the screen. The first icon in each box is controlled with Low Punch, the second with Block, and the third with Low Kick.
Result Kode
One-hit death 123 123
Noob Saibot mode 012 012
Red Rain (On the Rain stage) 020 020
Explosive Kombat 050 050
No rain 060 060
Drawn weapons can not be lost 002 002
Disable throws 100 100
Disable max damage 010 010
Noob Saibot Mode 012 012
Disable throws and max damage 110 110
Random weapon appears 111 111
Start with random weapon 222 222
Start with weapons drawn 444 444
Many weapons 555 555
Silent Kombat 666 666
Big heads 321 321
Fight in Goro's Lair (Spike Pit) 011 011
Fight in The Well (Scorpion's stage) 022 022
Fight in Elder Gods (Blue Face) stage 033 033
Fight in The Tomb stage 044 044
Fight in Wind World stage 055 055
Fight in Reptile's Lair 066 066
Fight in Shaolin Temple 101 101
Fight in Living Forest 202 202
Fight in The Prison (Fan stage) 303 303
Fight in Ice Pit 313 313
Fight in The Church 323 323
Fight in The Netherrealm 343 343
Fight in The Soul Chamber 353 353
Fight in Ladder stage 363 363

Kombat code
Allows the following cheats to be activated:
0: No Kode
1: Big Heads
2: Throwing Disabled
3: Max Damage Disabled
4: Max/Throw Disabled
5: Unlimited Run
6: Free Weapon
7: Random Weapons
8: Armed & Dangerous
9: Many Weapons
10: Silent Kombat
11: Explosive Kombat
12: No Power
13: No Rain
14: Weapon Kombat
15: Noob Saibot Mode
16: Red Rain
17: Goro's Lair
18: The Well
19: Elder Gods
20: The Tomb
21: Wind World
22: Reptile's Lair
23: Shaolin Temple
24: Living Forest
25: Prison
26: Ice Pit
27: The Church
28: The Netherrealm
29: The Soul Chamber
30: Ladder Stage