Cheats42.net

Infinite stealth:
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At the Autobot headquarters screen, press Up, Up, Down, Down, L1, L2, L1, L2.
Infinite Powerlink:
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At the Autobot headquarters screen, press Up, Down, Up, Down, Circle,
Square, Square, Circle.
Big Head Mode:
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At the Autobot headquarters screen, press Circle, Circle, Circle,
Square, L1, L1, L1, L2.
Turbo Mode:
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At the Autobot headquarters screen, press L1, R2, R2, Square, Square,
Square, Square, L1.
Starship Level Complete:
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At the Difficulty Select, press Left, Left, Right, Circle, Circle,
Right, Right, Left.
Alaska Level Complete:
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At the Difficulty Select, press R1, Circle, R1, Square, Left, Left,
Right, Left.
Deep Amazon Level Complete:
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At the Difficulty Select, press Left, Right, Left, Left, Right, R1,
R2, Circle.
Earth Level Complete:
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At the Difficulty Select, press R2, R1, L1, L2, Square, Circle,
Square, Circle.
Mid Atlantic Level Complete:
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At the Difficulty Select, press Circle, Square, Circle, Square,
Right, Left, Left, Right.
One Hit Kills:
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While playing, pause the game then press Square, Circle, Square,
Circle, L1, L1, L2, L1.
Cheats:
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Enter these codes at Autobot HQ:
Unlimited powerlink
Up - Down - Up - Down - Circle - Square - Square - Circle
Unlimited stealth
Up - Up - Down - Down - L1 - L2 - L1 - L2
Enter these codes with the game paused:
Cheat
Code
One shot kills
Square - Circle - Square - Circle - L1 - L1 - L2 - L1
Enter these codes at the Select Difficulty screen:
Cheat
Code
Big heads
Circle - Circle - Circle - Square - L1 - L1 - L1 - L2
Turbo mode
L1 - R2 - R2 - Square - Square - Square - Square - L1
Alaska completed
R1 - Circle - R1 - Square - Left - Left - Right - Left
Amazon completed
Left - Right - Left - Left - Right - R1 - R2 - Circle
Earth completed
R2 - R1 - L1 - L2 - Square - Circle - Square - Circle
Mid Atlantic completed
Circle - Square - Circle - Square - Right - Left - Left - Right
Starship completed
Left - Left - Right - Circle - Circle - Right - Right - Left
Cheats:
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Enter the following cheats at the Autobot HQ:
i)R1-0-0-R1-R2-L1-L1-L2~Invincibility
R1 R1 L2 R1 R1 L2 0 0-Disable minicon overload