Superman Returns – The Videogame – XBox 360

Superman Returns - The Videogame - Platform: XBox 360

God mode:
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Press Up(2), Down(2), Left, Right, Left, Right, Y, X.

All power-ups:
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Press Left, Y, Right, X, Down, Y, Up, Down, X, Y, X.

All unlockables:
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Press Left, Up, Right, Down, Y, X, Y, Up, Right, X.

Unlimited city health:
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Press Y, Right, Y, Right,, Up,, Left, Right, Y.

Golden Age Superman costume:
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Save Metropolis from the tornadoes.

Pod costume:
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Defeat Bizarro. 

Achievements:
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Complete the following achievements to unlock Xbox Live Gamerscore points.

Hero of Metropolis (200 points): Complete All Metro Events And Mini-Games. 

Armageddon Averted (30 points): Complete Level 01: Meteor Storm. 

Mr. What's-his-name (50 points): Complete All Mini-Games. 

You Am Bizarro! (20 points): Complete The Bizarro Mini-Game. 

Super Sonic (20 points): Finished All Fast Flyer Mini-Games. 

Mr. Whiskers (50 points): Find All Kittens. 

Souped-Up Superman (30 points): Obtain All 15 Power-Ups. 

Frequent Flyer (30 points): Travel For 10,000 Miles. 

Roadside Assistance (30 points): Pick Up 100 Cars Throughout The Game. 

The Greatest Day (30 points): Play A Total Of 12 Hours. 

Heavy Lifting (30 points): Lift 10,000 Tons Throughout The Game. 

Additionally, there are seven secret achievements, all of which remain unknown 
at this time.

achievments:
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Posted By Welsh W4rrior

here are the seven additional achievments for superman returns the video game for the 360
Warworld (50 points): Visited and dominated Warworld.
Metallo Mastered (100 points): Stopped Metallo in the name of justice.
Me aM savE yOU 100 points): By you is Bizarro not undefeated.
The Mongul Hordes (100 points): Vanquished Mongul once again.
Twisted (100 points): Saved Metropolis from the rampaging tornado.
Versatile Fighter (30 points): Perform 99 fighting combos.
Not That Super (0 points): Entered a cheat code.