Enter one of the following cheat codes at the "Cheat Codes" menu.

Code	Effect
R3, Triangle, X, Triangle, L3, L1	All Cairo missions and zones
Square, R1, Triangle, Circle, X, L1	All Deep Six missions and zones
R3, L3, R1, X, Circle, Square	All East Coast missions and zones
Triangle, L3, R3, L1, Triangle, X	All Shanghai missions and zones
L1, Triangle, L1, Circle, Square(2)	All upgrades
L1, R1, R3, Triangle, R3, Circle	All West Coast missions and zones
L1, Circle, L1, X, Square, R3	Always in Overdrive mode
Triangle, Square, Circle, R3, X, Triangle	Extra Energon from defeated enemies
L1, R1, R1, X, Circle, Triangle	G1 Ironhide in single player
Circle, X, Circle, R1, Triangle, R1	G1 Starscream in single player
Down, Up, Right(2), Left, Up	Gold Megatron in multi-player
Up, Down, Left(2), Right, Down	Gold Optimus Prime in multi-player
Triangle(2), Circle, X, Square, L1	Increased enemy accuracy
L1, Triangle, X, Triangle, R3(2)	Increased enemy damage
Circle, Square, L1, Circle, R3, Triangle	Increased enemy health
Triangle(2), R3, X, L1, Triangle	Increased weapon damage in robot form
Triangle, Circle, R1, Square, R3, L3	Increased weapon damage in vehicle form
R3, X, Square, L3, Square(2)	Invincibility
Square(2), Triangle, L3, Triangle, L3	Low gravity mode
Square, L3, R3, L3, R3, R1	Lower enemy accuracy
R3, X, L1, Circle, R3, L1	Melee instant kills
R3, Square, R3(2), Square, X	No Special cooldown time
L3, Square, X, L3, Triangle, L3	No weapon overheat
R3, L1(2), Triangle, Square, X	Play as Autobot Protectobot Scout MP in Autobot based single player
Square, Triangle, Square, L1, X, L1	Play as Decepticon Seeker Warrior MP in Decepticon based single player
Circle(2), R1, Circle, X, L3	Special kills only mode
Circle, L3, Square, X, Triangle	Unlimited turbo