The code is available on the Superman Returns DVD - it has been reported as:

Up, Right, Down, Right, Up, Left, Down, Right, Up

Simply enter the code and fly to the top of the GNN building where you will have the ability to transform to playable Bizarro. Wreak havoc throughout the entire open world of Metropolis as Bizarro for an unlimited amount of time, and simply fly to the threat indicator located at the other end of Metropolis to change back to Superman.

Submitted By: GRTW

God Mode

Entry Location:
Pause Menu

Up, up, down, down, left, right, left, right, y, x

Submitted By: BlingBoy3443 & Vossk

All Power-Ups

Entry Location:
Fortress of Solitude Menu

Left, Y, right, X, down, Y, up, down, X, Y, X

Submitted By: Vossk & BlingBoy3443

Metropolis Invincibility

Entry Location:
Fortress of Solitude Menu

Y, right, Y, right, up, left, right, Y

Submitted By: Vossk & BlingBoy3443

Unlimited City Health

Entry Location:
Pause Menu

Y, right, y, right, up, left, right, y

Submitted By: BlingBoy3443

All Unlockables

Entry Location:
Fortress of Solitude Menu

Left, up, right, down, Y, X, Y, up, right, X

Submitted By: Vossk & BlingBoy3443

Superman Returns Unlockables

Achievements

Armageddon Averted (30) - Complete Level 01: Meteor Storm
Frequent Flyer (30) Â– Travel 10,000 Miles
Heavy Lifting (30) - Lift 10,000 Tons
Hero of Metropolis (200) - Complete All Metro Events And Mini-Games
Me aM savE yOU (100) - By you is Bizarro not undefeated!
Metallo Mastered (100) - Stop Metallo in the name of justice
Mr. What's-his-name (50) - Complete All Mini-Games
Mr. Whiskers (50) - Find All Kittens
Roadside Assistance (30) - Pick Up 100 Cars
Souped-Up Superman (30) - Obtain All 15 Power-Ups
Super Sonic (20) - Finish all Fast Flyer Mini-Games
The Greatest Day (30) - Play for 12 Hours
The Mongul Hordes (100) - Vanquished Mongul once again
Twisted (100) - Save Metropolis from the rampaging tornado
Versatile Fighter (30) - Perform 99 fighting combos
Warworld (50) - Visit and dominate Warworld
You Am Bizarro! (20) - Complete The Bizarro Mini-Game

Submitted By: Roxr

Unlock Costumes

Golden Age Superman Suit - Save Metropolis from the tornadoes
Pod Suit - Beat Bizarro

Submitted By: Roxr

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