Enter during gameplay in The Fortess Of Solitude:
| Code: | Result: |
| Left, up, Right, Down, Y, X, Y, Up, Right, X | All Unlockables |
| Up, Up, Down, Down, Left, Right, Left, Right, Y, X | God Mode |
| Y, Right, Y, Right, Up, Left, Right, Y | Infinite City Health |
| Left, Y, Right, X, Down, Y, Up, Down, X, Y, X | Unlock All Powerups |
| Up, Right, Down, Right, Up, Left, Down, Right, Up | Unlock Bizarro |
Enter the codes at the in-game pause menu using the D-Pad for directionals. Deactivate model-change codes by reentering the same code as the one that was most recently entered.
For the Fast Traffic code, if you hear a kitten meow, you entered the code correctly. For the Model Change codes, if you hear glass breaking, you entered the code correctly. If you enter the code and do not hear the appropriate activation sound effect, press Start and then press Start again to exit and reenter the Pause menu.
| Code: | Result: |
| Right, Up, Y, Y, Up, Right, Down, Up, X | Fast Traffic |
| X, Y, X, Y, Left, Up, Right, Down | Model Change: Ice Machine |
| X, Y, X, Y, Up, Right, Down, Left | Model Change: Modern Phone Booth |
| X, Y, X, Y, Up, Down, Right, Left | Model Change: Potted Plant |
| X, Y, X, Y, Up, Down, Left, Right | Model Change: Vending Machine 1 |
| X, Y, X, Y, Up, Left, Down, Right | Model Change: Vending Machine 2 |
Complete the following achievements to unlock Xbox Live Gamerscore points.
| Unlockable: | How to Unlock: |
| Armageddon Averted (30 points) | Complete Level 01: Meteor Storm. |
| Frequent Flyer (30 points) | Travel For 10,000 Miles. |
| Heavy Lifting (30 points) | Lift 10,000 Tons Throughout The Game. |
| Hero of Metropolis (200 points) | Complete All Metro Events And Mini-Games. |
| Mr. What's-his-name (50 points) | Complete All Mini-Games. |
| Mr. Whiskers (50 points) | Find All Kittens. |
| Roadside Assistance (30 points) | Pick Up 100 Cars Throughout The Game. |
| Souped-Up Superman (30 points) | Obtain All 15 Power-Ups. |
| Super Sonic (20 points) | Finished All Fast Flyer Mini-Games. |
| The Greatest Day (30 points) | Play A Total Of 12 Hours. |
| You Am Bizarro! (20 points) | Complete The Bizarro Mini-Game. |
These costumes become unlocked after certain tasks in the game have been completed
| Unlockable: | How to Unlock: |
| Golden Age Superman Suit | Save Metropolis from the tornadoes |
| Pod Suit | Beat Bizarro |
Compete tasks to unlock trophies.
| Unlockable: | How to Unlock: |
| Bizarro Unchampionship Trophy | Complete all five Bizarro mini-games |
| Globe Bowling Trophy | Go bowling with the Daily Planet Globe |
| Kitten Finder Extraordinaire | Find all 100 kittens |
| Meteor Mayhem | Protect Metropolis from a meteor storm |
| Outstanding Valet Trophy | Pick up 500 vechicles |
| Photo Finish | Defeat 500 enemies |
When flying as Superman at hyper speed, he goes through stages where after an amount of time of continuous flying he gains a burst in speed. He accelerates and becomes faster and faster. If you fly for long enough (doing a lap or two of the entire city flying above the sea recommended), he eventually breaks the sound barrier. It is about the fourth jump in speed. You will know this has happened when the sound of him ripping through the air is suddenly silent. This is because Superman is traveling faster than his own sound.
