Enter codes at the "Campaign/Bonus Features" main menu.
Enter codes for each character during one of their missions. This will change the character's appearance to their Generation 1 skin.
Key: U= Up D=Down L=Left R=Right
Note: Use of these cheats will prevent you from achieving gamerscore!
|D L L D R R U||G1 Megatron|
|D R L U D D L||G1 Prime|
|L U D D L U R||Generation 1 Skin Jazz|
|D D U U R R R||Generation 1 Skin Optimus Prime|
|R D L L D U U||Generation 1 Skin Starscream|
|L L U L R D R||Infinite Health - Invincible|
|U,D,L,R,U,U,D||No Ammo Reload|
|R L R L R L R||No Military or Police|
|D U L R R R U D||Unlock All mission including 2 special mission|
|R U U D R L L||Unlocks the two Cybertron missions.|