Ultimate Mortal Kombat
Kombat Kodes
Select a two player game. At the Vs. screen, player one must press B, R, and A (or Low Punch, Block, Low Kick) to select the first three characters of the Kode, and player two uses the same buttons on a second DS for the last three characters. Enter a valid Kode before the Vs. screen fades. Pressing a button will cycle the specific character to which it is assigned.
| Result | Kode |
| Belltower stage | 091 190 |
| Bridge stage | 077 022 |
| Graveyard stage | 666 333 |
| Jade’s Desert stage | 330 033 |
| Kahn’s Kave stage | 004 700 |
| Kahn’s Tower stage | 880 220 |
| Kombat Temple stage | 600 040 |
| Noob Saibot Dorfen stage | 050 050 |
| Pit 3 stage | 820 028 |
| Rooftops stage | 343 343 |
| Scislac Busorez stage | 933 933 |
| Scorpions Lair stage | 666 444 |
| Soul Chamber stage | 123 901 |
| Street stage | 079 035 |
| Subway stage | 880 088 |
| Waterfront stage | 002 003 |
| Infinite Run | 466 466 |
| Unikoriv Referri: Sans Power (one hit KO) | 044 440 |
| Throwing Disabled | 100 100 |
| Throwing Encouraged | 010 010 |
| Silent Kombat | 300 300 |
Ulimate Kombat Kodes
At the “Ultimate Kombat Kode” screen, enter one of the following codes to activate the corresponding cheat function. The numbers indicate the number of times you need to tap an icon in a particular position to change it. Note: The Ultimate Kombat Kode screen becomes unlocked after you choose not to continue after a defeat.
| Result | Kode |
| Play as Classic Sub-Zero | 81835 |
| Play as Ermac | 12344 |
| Play as Mileena | 22264 |
Play as Human Smoke
At the character selection screen, select Robo Smoke. Immediately before the battle begins, hold Block + Run + High Punch + High Kick + Back.
Puzzle Kombat characters
Successfully complete the indicated task to unlock the corresponding characters:
- Bo Rai Cho: Score over 17,600 points.
- Jade : Successfully complete Puzzle Kombat without continuing.
- Kabal : Use the Super Move three times in a round to break chains.
- Mileena : Win a round in less than one minute.
- Raiden : Setup a five link combo.
Human Smoke’s moves
Note: Human Smoke does not have an Animality or second fatality.
- Spear: Press Away(2), Low Punch.
- Teleport: Press Down, Away, High Punch (can be done in air).
- Air Throw: Press Block (in air).
- Fatality: Press Run, Block, Run(2), Low Kick (close).
- Pit: Press Forward, Up(2), Low Punch (close).
- Babality: Press Down, Away(2), Forward, High Punch.
Sub-Zero’s special move
Quickly press Down, Away, B to make a frozen copy of yourself. If your opponent walks into it or touches it, they will freeze. Note: This move does not work with the unlockable Classic Sub-Zero.