Enter with the D-Pad in the "Cheat Codes" option in the main menu. Note: These characters will only be playable in multiplayer.

Code	Effect
LB, B, LB, A, X, RS	Always in Overdrive Mode.
Y, X, B, RS, A, Y	Extra Energon (ex: 4x frrom defeated enemies).
Down, Up, Right, Right, Left, Up	Golden Megatron.
Up, Down, Left, Left, Right, Down	Golden Optimus Prime.
Y, Y, B, A, X, LB	Increased Enemy Accuracy.
LB, Y, A, Y, RS, RS	Increased Enemy Damage.
B, X, LB, B, RS, Y	Increased Enemy Health.
Y, Y, RS, A, LB, Y	Increased Weapon Damage in Root Form.
Y, B, RB, X, RS, LS	Increased Weapon Damage in Vehicle Form.
RS, A, X, LS, X, X	Invincibility.
X, X, Y, LS, Y, LS	Low Gravity Mode (Everyone jumps higher and longer).
X, LS, RS, LS, RS, RB	Lower Enemy Accuracy.
RS, A, LB, B, RS, LB	Melee Instant Kills.
RS, X, RS, RS, X, A	No Special Cool Down Time.
LS, X, A, LS, Y, LB	No Weapon Overheat.
RS, LB, LB, Y, X, A	Play as Autobot Protectobot Scout MP in Autobot based Single Player.
X, Y, X, LB, A, LB	Plays as Decepticon Seeker Warrior MP in Decepticon Based Single Player.
B, B, RB, B, A, LS	Special Kills Only Mode (Cannot kill enemies except with special kills).
B, LS, X, RS, A, Y	Unlimited Turbo.
RS, Y, A, Y, LS, LB	Unlock all Cairo Missions and Zones.
X, RB, Y, B, A, LB	Unlock All Deep Six Missions and Zones.
RS, LS, RB, A, B, X	Unlock All East Coast Missions and Zones.
Y, LS, RS, LB, Y, A	Unlock All Shanghai Missions and Zones.
LB, RB, RS, Y, RS, B	Unlock All West Coast Missions and Zones.
LB, Y, LB, B, X, X	Unlock and activate ALL Upgrades.
B, A, B, (RB), Y, (RB)	Unlocks Generation 1 Starscream.