666 - Play as Smoke.
1000000 - Play as Motaro and Shao Kahn in 2 player mode
1995- Transparent players
831- Shadow Players
9966- Players face wrong direction
4000- Turbo mode
603015- Slow mode
8888- Wide players
1111- Thin players
12345- Tall players
54321- Short players
4862222- Block is bad
The following is a key for the Code Bar on 2 player mode.
{Key}:
0=Dragon
1=MK
2=Yin Yang
3=3
4=Question Mark
5=Lighting Bolt
6=Goro
7=Raiden
8=Shao Kahn
9=Skull
Use the above key and the codes below for pure cheating fun:
100100- Throws disabled
020020- Blocks Disabled
987123- No Power Bars
033000- Player 1 Half Energy
033000- Player 2 Half Energy
707000- Player 1 Quarter Energy
000707- Player 2 Quarter Energy
688422- Dark Combat
642648- Galaga
101000- Player 1 Healing Enabled
000101- Player 2 Healing Enabled
303303- Both Players Healing Enabled
202000- Player 1 Weaking Enabled
000202- Player 2 Weaking Enabled
404404- Both Players Weaking Enabled
552000- Player 1 Takes Double Damage
000552- Player 2 Takes Double Damage
552255- Both Players Take Double Damage
239494- Sweeping Disabled
972279- Timer Disabled
348279- Timer Slow
978243- Multi-Powers
969141- Winner Fights Montaro
769432- Winner Fights Noob Saibot
033564- Winner Fights Shao Kahn
205205- Winner Fights Smoke
282282- No Fear appears on screen
123926- No Knowledge That Is Not Power appears on screen
987666- Hold Flippers During Casino Run appears on screen