King of Fighters XI, The Cheats on PlayStation 2
If you complete all 40 missions at the Challenge mode, you can unlock everything in the game.
There are various special ending pictures you can unlock for the Ending gallery aside from the main teams. Beat the game with any of the following team to unlock a special picture.
| Ending Picture | How to unlock |
| 2003 Main Characters Team | Ash, Duo Lon, Shen |
| Adel's Ending | Adel + Anyone else |
| Authority Team | Elizabeth, Whip, B.Jenet |
| Bird Team | Duck, Griffon, Jazu |
| Buriki Team | Gai, Ryo, Silver |
| Elder Brothers Team | Adel, Ryo, Gato |
| Gai with Buriki One Girls | Gai as the leader + Anyone else |
| Girls Team | Athena, Momoko, Kula |
| Jazu Portrait | Jazu as the leader + Anyone else |
| Justice Team | Kim, Griffon, Athena |
| KoF Main Characters Team | Ash, Kyo, K' |
| Kyokugenryu Team | Ryo, Yuri, Robert |
| New Challenger Team | Use three of the following: Hotaru, Mai, Robert, Tung Fu Rue, EX Kyo, Mr. Big, Geese |
| Ninja Team | Eiji, Mai, Jazu |
| One Sided Love Team | Robert, Kensou, Ramon |
| Reinventing Oneself | Kim as leader + 2 evil characters |
| Sho Hayate Portrait | Sho Hayate as the leader + Anyone else |
| Silbur Portrait | Silbur as the leader + Anyone else |
| Women's Team | Elizabeth, Vanessa, King |
| Character | How to unlock |
| Fight as Adelheid | Defeat Adelheid in Arcade mode. |
| Fight as Ex Kyo Kusanagi | Successfully complete Challenge #30 |
| Fight as Gai | Defeat Gai in Arcade mode. |
| Fight as Geese Howard | Successfully complete Challenge #40. |
| Fight as Hotaru Futaba | Successfully complete Challenge #15. |
| Fight as Jyazu | Defeat Jyazu in Arcade mode. |
| Fight as Magaki | Successfully complete Challenge #6. |
| Fight as Mai Shiranui | Successfully complete Challenge #20. |
| Fight as Mr. Big | Successfully complete Challenge #35. |
| Fight as Robert Garcia | Successfully complete Challenge #10. |
| Fight as Shion | Defeat Shion in Arcade mode. |
| Fight as Sho | Defeat Sho in Arcade mode. |
| Fight as Silber | Defeat Silber in Arcade mode. |
| Fight as Tung Fu Rue | Successfully complete Challenge #25. |
On stage 4 in arcade mode, you will get challenged by a secret character. The character that challenges you is determined by how many LDM you land on your opponent before that, you will get at most 2 LDM usage per stage, so to fight Jyazu or Silber, you must land all 6. If you meet the requirement for Jyazu and Silber, the one who challenges you will be random between these 2. This will help you unlock these character faster.
| Unlockable | How to Unlock |
| Adelheid | Fail any of the requirements. |
| Gai | KO at least 1 character with a LDM |
| Jyazu | KO at least 6 characters with a DM, use at least 2 LDM in the fights. No teamates may die |
| Sho Hayate | KO at least 3 characters with a LDM, no teamates may die |
| Silver | KO at least 6 characters with a DM, use at least 2 LDM in the fights. No teamates may die |
Press Start + any direction on any character select screen
| Code | Effect |
| Press Start + up or down when choosing a character | Random (single) - choose a single random character |
| Press Start + left or right before choosing any characters | Random (team) - choose a random team of characters |