TheXboxLife

To unlock the following, insert the passwords on the main menu (where campaigns can be selected, et cetera)…


G1 Jazz Skin – Left, Up, Down, Down, Left, Up, Right
G1 Megatron Skin – Down, Left, Left, Down, Right, Right, Up
G1 Optimus Prime Skin – Down, Right, Left, Up, Down, Down, Left
G1 Starscream Skin – Right, Down, Left, Left, Down, Up, Up
No Vehicles, Military, or Police – Right, Left, Right, Left, Right, Left, Right
Robovision Optimus Prime Skin – Down, Down, Up, Up, Right, Right, Right
Unlock All Missions – Down, Up, Left, Right, Right, Right, Up, Down
Unlock both Cybertron Missions – Right, Up, Up, Down, Right, Left, Left
Unlock Unlimited Ammo – Up, Down, Left, Right, Up, Up, Down
Unlock Unlimited Health (Invincibility) – Left, Left, Up, Left, Right, Down


Unlockable: Character Skin


G1 Jazz – Complete all sub-missions (both campaigns)
G1 Megatron – Acquire all Decepticon icons
G1 Optimus Prime – Acquire all Autobot icons
G1 Starscream – Finish the Decepticon campaign
Robovision Optimus Prime – Finish the Autobot campaign


Unlockable: All Missions


To unlock all missions for both the Autobots and Decepticons, insert the following code at the game’s main menu (where the campaign options are listed, et cetera): Down, Up, Left, Right, Right, Right, Up, Down.