At the story screen, press Down(2), Up(2), Right(2), Left(2). If you entered the code correctly, you will hear a sound. Now the credit display will change to "Freeplay".
If fighting as player one, choose any male ninja (Reptile, Classic Sub-Zero, Rain, Human Smoke, Ermac, Noob Saibot, or Scorpion) and hold Left + R1 + R2 + Square + Triangle until the fight starts. If fighting as player two, choose any male ninja and hold Right + R1 + R2 + Square + Triangle until the fight starts. Chameleon is a semi-clear ninja that morphs into all the other ninjas in the game. When the fight begins, your ninja will explode and change into Chameleon.
Press Select when choosing Rayden, Jax, Kung Lao, or Kano for the classic (Mortal Kombat 1) versions of those fighters.
On the character selection screen, highlight Sonya and press Up + Start in one player or Vs mode. If you entered the code correctly, the screen will shake and there will be a boom sound.
On the character selection screen, hold Up + Start.
Hold Up + R1 + R2 + L1 + L2 and press Up when the square labeled "Konfigure Kombat" is displayed in the Options menu. If you entered the code correctly, the screen will shake. Now a "?" menu will open, and allow the following options to be set:
One button fatalities: You can finish your opponent by pushing one of the following buttons:
| Button | What It Does |
| HK | Fatality 1 |
| LK | Fatality 2 |
| HP | Brutality |
| LP | Babality |
| Run | Animality |
| Block | Friendship |
Instant aggressor: The Aggressor Meter will fill after one hit.
Normal Boss damage: A boss's damage will be the same as a normal fighter.
Low damage: The fighters' damage after each hit is minimal.
Health recovery: The health meters will replenish by a small amount after every hit.
At the Vs. screen, each player's LP, BL, and LK buttons will set the six boxes at the bottom of the screen. Use the following numbers to represent the symbols that will appear in the boxes. The player on the left controls the first three boxes. The player on the right controls the last three boxes. Tap a button to advance one symbol; hold a button to display the previous symbol.
| Symbol | |
| Dragon | |
| MK | |
| Yin-yang | |
| "3" | |
| Question mark | |
| Lightning | |
| Goro | |
| Rayden | |
| Shao Kahn | |
| Skull |
| Kombat Kode | Effect |
| 788-322 | Fast uppercut recovery |
| 044-440 | No power |
| 300-300 | Silent Kombat |
| 100-100 | Throwing Disabled |
| 010-010 | Throwing Encouraged |
| 020-020 | Blocking Disabled |
| 205-205 | Winner fights Smoke |
| 769-342 | Winner fights Noob |
| 969-141 | Winner fights Shao Kahn |
| 033-564 | Winner fights Motaro |
| 444-444 | Randper Kombat |
| 282-282 | No Fear |
| 987-666 | Flipper message |
| 550-550 | Wavenet UMK3 message |
| 999-999 | Version Number message |
| 448-844 | "Don't jump at me.." |
| 717-313 | Rain is in the Graveyard |
| 122-221 | "Skunky!" |
| 004-400 | Ed Boon message |
| 987-123 | No Powerbars |
| 688-422 | Dark fighting |
| 985-125 | Psycho kombat |
| 642-468 | Play hidden game |
| 788-322 | Uppercut Recovery |
| 466-466 | Unlimited running |
| 321-789 | Super Run Jumps |
| 975-310 | Health Recovery |
| 722-722 | Combos Disabled |
| 555-556 | Special Moves Disabled |
| 024-689 | Super Endurance Kombat |
| New for MKT | |
| 484-484 | Automatic Kombos |
| 109-901 | Bloody Kombat |
| 202-808 | "Babalities Are Reversible" |
| 123-321 | Winner Fights Khameleon |
| For 2-on-2 and 3-on-3 | |
| 022-220 | Explosive Kombat / Throwing Disable |
| 227-227 | Explosive Kombat |
| Kombat Zones | |
| 330-033 | Jade's Desert |
| 666-444 | Scorpion's Lair |
| 091-190 | Bell Tower |
| 666-333 | Graveyard |
| 933-933 | Scislac Busorez |
| 880-088 | Subway |
| 050-050 | Noob's Dorfen |
| 343-343 | The Roof |
| 820-028 | Pit III |
| 004-700 | Kahn's Kave |
| 002-003 | River Kombat |
| 600-040 | Kombat Temple |
| 079-035 | The Street |
| 123-901 | The Soul Chamber |
| 077-022 | The Bridge |
| 880-220 | Kahn's Tower |
| New for MKT | |
| 222-222 | Dead Pool |
| 191-191 | The Armory |
| 919-919 | The Pit |
| 606-606 | Star Bridge |
| 101-010 | The Tower |
| 007-007 | The Portal |
| 166-661 | The Pit II |
| 121-121 | The Courtyard |
| 212-212 | The Wasteland |
| 000-666 | The Lair |
| Infinite Energy P1 | 8003219E 00A6 |
| 75% Energy P1 | D003219E 00A6 80031DE0 007C |
| 50% Energy P1 | D003219E 00A6 80031DE0 0053 |
| 25% Energy P1 | D003219E 00A6 80031DE0 0029 |
| P1 No Energy | 8003219E 0000 |
| P1 One Hit Death | D003219E 00A6 8003219E 0001 |
| P1 Always Has Full "Aggressor" | 80032698 00CC |
| P1 Always Has No "Aggressor" | 80032698 0000 |
| P1 Infinite Run | 800321A0 0030 |
| P1 Cannot Run | 800321A0 0000 |
| P1 Cannot Jump | 80028E9E 0000 |
| P1 Cannot Do Special Moves | 80032200 0000 |
| P1 Combos are Off | 8003267E 0000 |
| P1 Has Auto Combos | 8003267E 0002 |
| P1 Combos are On | 8003267E 0001 |
| P1 Never Wins | 800321A4 0000 |
| P1 Needs 1 Round to Win | D00321A4 0000 800321A4 0001 |
| Character Modifier P1 | 8002833A 00?? |
| Infinite Energy P2 | 80032316 00A6 |
| 75% Energy P2 | D0032316 00A6 80032316 007C |
| 50% Energy P2 | D0032316 00A6 80032316 0053 |
| 25% Energy P2 | D0032316 00A6 80032316 0029 |
| P2 No Energy | 80032316 0000 |
| P2 One Hit Death | D0032316 00A6 80032316 0001 |
| P2 Always Has Full "Aggressor" | 8003269A 00CC |
| P2 Always Has No "Aggressor" | 8003269A 0000 |
| P2 Infinite Run | 80032318 0030 |
| P2 Cannot Run | 80032318 0000 |
| P2 Cannot Do Special Moves | 80032378 0000 |
| P2 Combos are Off | 80032680 0000 |
| P2 Has Auto Combos | 80032680 0002 |
| P2 Combos are On | 80032680 0001 |
| P2 Never Wins | 8003231C 0000 |
| P2 Needs 1 Round to Win | D003231C 0000 8003231C 0001 |
| Character Modifier P2 | 80028386 00?? |
| Unlock "?" in Options | 8003268C 0001 |
| Stage Select is On | 8003C940 0001 |
| 1-Button Fatalities are On | 8003265A 0001 |
| 1-Button Fatalities are Off | 8003265A 0000 |
| Instant Aggressor is On | 80032686 0001 |
| Instant Aggressor is Off | 80032686 0000 |
| Normal Boss Damage is ON | 80032684 0001 |
| Normal Boss Damage is OFF | 80032684 0000 |
| Low Damage is ON | 80032688 0001 |
| Low Damage is OFF | 80032688 0000 |
| Health Recovery is ON | 8003268A 0001 |
| Health Recovery is OFF | 8003268A 0000 |
| Versus Screen is OFF | 8003268E 0000 |
| Versus Screen is ON | 8003268E 0001 |
| Buy in Screen is OFF | 80032690 0001 |
| Buy in Screen is ON | 80032690 0000 |
| Select Screen is Fast | 80032692 0001 |
| Select Screen is ON | 80032692 0001 |
| Match Recycle=OFF | 80032694 0000 |
| Match Recycle=1 | 80032694 0001 |
| Match Recycle=2 | 80032694 0002 |
| Match Recycle=3 | 80032694 0003 |
| Match Recycle=4 | 80032694 0004 |
| Timer is Disabled | 8003267A 0000 |
| Timer is Enabled | 8003267A 0001 |
| Blood is Disabled | 8003248E 0001 |
| Blood is Enabled | 8003248E 0000 |
| Difficulty is Very Easy | 800324A4 0000 |
| Difficulty is Easy | 800324A4 0001 |
| Difficulty is Medium | 800324A4 0002 |
| Difficulty is Hard | 800324A4 0003 |
| Difficulty is Very Hard | 800324A4 0004 |
| P1 Square Button Config | 800F8E46 000? |
| P1 X Button Config | 800F8E4E 000? |
| P1 Circle Button Config | 800F8E56 000? |
| P1 Triangle Button Config | 800F8E5E 000? |
| P1 R1 Button Config | 800F8E66 000? |
| P1 R2 Button Config | 800F8E6E 000? |
| P1 L1 Button Config | 800F8E7E 000? |
| P1 L2 Button Config | 800F8E7E 000? |
| P2 Square Button Config | 800F8E86 000? |
| P2 X Button Config | 800F8E8E 000? |
| P2 Circle Button Config | 800F8E96 000? |
| P2 Triangle Button Config | 800F8E9E 000? |
| P2 R1 Button Config | 800F8EA6 000? |
| P2 R2 Button Config | 800F8EAE 000? |
| P2 L1 Button Config | 800F8EB6 000? |
| P2 L2 Button Config | 800F8EBE 000? |
| Infinite Run (Kombat Kode) | 800325D4 0001 |
| Disable Throwing (Kombat Kode) | 800325B2 0001 |
| Throwing Encouraged (Kombat Kode) | 800325F8 0001 |
| Blocking Disabled (Kombat Kode) | 800325B6 0001 |
| Quick Uppercut Recovery | 800325D2 0001 |
| Enable Kombat Kode Modifier (Not All) | 800325B4 00?? |
| Quantity Digits to Accompany Kombat Kode Modifier Code | |
| 00 - Throwing Disabled 01 - Blocking Disabled 02 - P1 Has Half Power 03 - P2 Has Half Power 04 - Dark Kombat 05 - Hold Flippers 06 - P1 Has Quarter Power 07 - P2 Has Quarter Power 08 - No Fear 09 - Quick Uppercut Recovery 0A - Unlimited Run 0B - No Knowledge 0C - Sans Power 0D - Silent Kombat 0E - Throwing Encouraged 0F - See The Live Tour 10 - Rain Can Be Found 11 - Don't Jump at me 12 - Skunky 13 - Watcha Gun do? 14 - Jack Gandolpho 15 - Hayden Fultz | |
| Quantity Digits to Accompany Button Configuration Codes | |
| 0 - High Punch 1 - Low Punch 2 - Block 3 - High Kick 4 - Low Kick 5 - Run | |
| Quantity Digits to Accompany Character Modifier Codes | |
| 00 - Kano 01 - Sonya 02 - Jax 03 - Nightwolf 04 - Sub-Zero 05 - Stryker 06 - Sindel 07 - Sektor 08 - Cyrax 09 - Kung Lao 0A - Kabal 0B - Sheeva 0C - Shang Tsung 0D - Liu Kang 0E - Smoke 0F - Kitana 10 - Jade 11 - Mileena 12 - Scorpion 13 - Reptile 14 - Ermac 15 - Classic Sub-Zero 16 - Human Smoke 17 - Noob Saibot 18 - Motaro 19 - Shao Kahn 1A - Rain 1B - Chameleon 1C - Raiden 1D - Baraka 1E - Kintaro 1F - Jonny Cage 20 - Goro 21 - Classic Kung Lao 22 - Classic Jax 23 - Classic Raiden 24 - Classic Kano |