- Developer memorial
In Research Park, by the Superman statue, there is a memorial to Derek Allman, one of the developers. The game is dedicated to the memory of him as said in the credits.

- Activate Cheats
Pause the game to display the 'Fortress Of Solitude' menu. Then, enter one of the following codes at this menu to obtain the corresponding effect. If you entered the code correctly, you will hear a sound. Notice: Some codes cannot be activated until the Warworld level (level 3) has been completed.

All power-ups Pause the game and press Left, Y, Right, X, Down, Y, Up, Down, X, Y, X.
Play as Bizarro in Free Roam mode Pause the game and press Up, Right, Down, Right, Up, Left, Down, Right, Up. Then, fly to the marker at the top of the GNN building to change to Bizarro. To change back to Superman, go to the marker at the other end of Metropolis.
Infinite stamina Pause the game and press Up(2), Down(2), Left, Right, Left, Right, Y, X.
Infinite city health Pause the game and press Y, Right, Y, Right, Up, Left, Right, Y.
All bonuses Pause the game and press Left, Up, Right, Down, Y, X, Y, Up, Right, X to unlock all bonuses.

- Trophies
Successfully complete the indicated task to unlock the corresponding trophy:


- Breaking the sound barrier
While 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 (flying a lap or two around the entire city above the sea is 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.

- Alternate costumes
Successfully complete the indicated task to unlock the corresponding costume:

Golden Age suit	Save Metropolis from the tornadoes
Pod suit	Overcome Bizarro

- Achievements
Do the following things to obtain the corresponding Gamerscore points:

20 Points
You Am Bizarro!	Finish the Bizarro mini-game.
Super Sonic	Finished all Fast Flyer mini-games.
30 Points
The Greatest Day	Play a total of 12 hours.
Armageddon Averted	Finish Level 01
Roadside Assistance	Pick up 100 cars throughout the game.
Souped-Up Superman	Acquire all 15 power-ups.
Frequent Flyer	Travel for 10,000 Miles.
Heavy Lifting	Lift 10,000 tons throughout the game.
50 Points
Mr. Whiskers	Find all kittens.
Mr. What's-his-name	Finish all mini-games.
200 Points
Hero of Metropolis	Finish all Metro Events and mini-games.

30 Points
Versatile Fighter	Perform 99 fighting combos.
50 Points
Warworld	Visited and dominated Warworld.
100 Points
The Mongul Hordes	Vanquished Mongul once again.
Twisted	Saved Metropolis from the rampaging tornado.
Metallo Mastered	Stopped Metallo in the name of justice.

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