At the versus screen, Player 1 enters the first 3 digits and Player 2 enters the last 3 digits. Blocks represent the controller face buttons: 1 (Front Punch), 2 (Back Punch), 3 (Front Kick), 4 (Back Kick) on PS3. Codes with 9, 8, 7, etc. use all four face buttons plus the triggers — see the in-game legend for your platform.
| Effect | Player 1 | Player 2 | Notes |
|---|---|---|---|
| Armless Kombat | 9-1-1 | 9-1-1 | — |
| Blocking Disabled | 0-2-0 | 0-2-0 | — |
| Breakers Disabled | 0-9-0 | 0-9-0 | — |
| Dark Kombat | 0-2-2 | 0-2-2 | — |
| Double Dash | 3-9-1 | 1-9-3 | — |
| Dream Kombat | 2-2-2 | 5-5-5 | — |
| Enhance Moves Disabled | 0-5-1 | 1-5-0 | — |
| Explosive Kombat | 2-2-7 | 2-2-7 | — |
| Foreground Objects Disabled | 0-0-1 | 0-0-1 | — |
| Headless Kombat | 8-0-8 | 8-0-8 | — |
| Health Recovery | 0-1-2 | 0-1-2 | — |
| Hyper Fighting | 0-9-1 | 0-9-1 | — |
| Invisible Kombat | 7-7-0 | 7-7-0 | — |
| Jumping Disabled | 8-3-1 | 8-3-1 | — |
| Klassic Music | 1-0-1 | 1-0-1 | Turns on the stage's classic music |
| Kombos Disabled | 9-3-1 | 9-3-1 | — |
| No Blood | 9-0-0 | 9-0-0 | — |
| Player 1 Half Health | 1-1-0 | 0-0-0 | — |
| Player 1 Quarter Health | 2-2-0 | 0-0-0 | — |
| Player 2 Half Health | 0-0-0 | 1-1-0 | — |
| Player 2 Quarter Health | 0-0-0 | 2-2-0 | — |
| Power Bars Disabled | 4-0-4 | 4-0-4 | — |
| Psycho Kombat | 7-0-7 | 7-0-7 | — |
| Quick Uppercut Recovery | 3-0-3 | 3-0-3 | — |
| Rainbow Kombat | 2-3-4 | 2-3-4 | — |
| Random Phrase 1 | 7-1-7 | 3-1-3 | "Don't defend in a temple corrupted with shadow." |
| Random Phrase 2 | 4-4-8 | 8-4-4 | "The krypt walls hold secrets." |
| Random Phrase 3 | 1-2-2 | 2-2-1 | "What lurks at the bottom of The Pit?" |
| Random Phrase 4 | 0-0-9 | 0-0-9 | "?SUNOB YTSAOT" |
| Random Phrase 5 | 5-5-0 | 0-5-5 | "Who hides in the forest?" |
| Random Phrase 6 | 0-3-1 | 1-3-0 | "Motaro Transformation?" |
| Random Phrase 7 | 2-8-2 | 2-8-2 | "She waits for you at the top of the tower…" |
| Random Phrase 8 | 1-2-3 | 9-2-6 | "Thanks for karing!" |
| Sans Power | 0-4-4 | 4-4-0 | — |
| Silent Kombat | 3-0-0 | 3-0-0 | — |
| Specials Disabled | 7-3-1 | 7-3-1 | — |
| Super Recovery | 1-2-3 | 1-2-3 | — |
| Throwing Disabled | 1-0-0 | 1-0-0 | — |
| Throwing Encouraged | 0-1-0 | 0-1-0 | — |
| Tournament Mode | 1-1-1 | 1-1-1 | — |
| Unlimited Super Meter | 4-6-6 | 4-6-6 | — |
| Vampire Kombat | 4-2-4 | 4-2-4 | — |
| X-Rays Disabled | 2-4-2 | 2-4-2 | — |
| Zombie Kombat | 6-6-6 | 6-6-6 | — |