Cheat Codes
Enter the following codes during the "Difficulty Select"
screen to get the desired results:

Unlockables
Fight Unicron
First you need to win the Pacific islands level, then you need to have gotten a total of 30 minicons. When you do these 2 things you can go to the Cybertron level where you fight Unicron in his planet mode.

Codes
Kill all enemies with a single shot
Pause the game, then enter the code. You will have to re-enter this code every time you enter a level.

Square, Circle, Square, Circle, L1, L1, L2, L1



Various Codes
Enter the following button codes during the "Difficulty Select" screen to get the desired results:

Mid Atlantic Level Complete	Circle, Square, Circle, Square, Right, Left, Left, Right
Starship Level Complete	Left, Left, Right, Circle Circle, Right, Right, Left
Alaska Level Complete	R1, Circle, R1, Square, Left, Left, Right, Left
Earth Level Complete	R2, R1, L1, L2, Square, Circle, Square, Circle
Deep Amazon Level Complete	Left, Right, Left, Left, Right, R1, R2, Circle

Autobot HQ Codes
Enter the following at Autobot HQ:

Infinite stealth (Must have convert minicon equipped)Up, Up, Down, Down, L1, L2, L1, L2

Infinite Powerlink Up, Down, Up, Down, Circle, Square, Square, Circle

Turbo Mode=L1, R2, R2, Square, Square, Square, Square, L1

Big Head Mode=Circle, Circle, Circle, Square, L1, L1, L1, L2

L1 Turbo Mode
L1, R2, R2, Square, Square, Square, Square,

To enter the following code, you must 1st pause the game whilst in a level. You will have to re-enter this code every time you enter a level.

Kill all enemies with a single shot
Square, Circle, Square, Circle, L1, L1, L2, L1 Kill any enemy with one shot.

More Cheat Codes
[Pause Game] at any time during gameplay and enter any of the following codes at the pause screen.

Invincibility- R1, Circle, Circle,R1,R2,L1,L1,L2
Stealth Enemies- Left, Right, Left, R1, R2, R1, Right, Right

Enter the following at Autobot HQ:

Infinite Dash- Up Up Square Circle Square Square L1 L2

Disables Minicon Overload (can equip any 4 minicons regardless of power)- R1, R1, L2, R1, R1, L2, Circle, Circle

All Mini-Cons
All Mini-Cons: R2, R1, LEFT, RIGHT, LEFT, RIGHT, CIRCLE,
SQUARE

One Hit Kills
While playing, pause the game and press SQUARE, CIRCLE, SQUARE, CIRCLE, L1, L1, L2, L1. You will hear "Code Accepted" when entered correctly.

Earth Level Complete
R2, R1, L1, L2, Square, Circle, Square, Circle.

Disable Minicon Overload
At the Autobot HQ screen, where you selection your autobot and mission, enter

Disables the minicon overload so you can equip any 4 minicons regardless of power=R1, R1, L2, R1, R1, L2, Circle, Circle.

PS2 Cheats for Transformers

Transformers cheat codes

Transformers cheats