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

Code	Effect
Circle, X, Circle, R1, Triangle, R1	G1 Starscream
Down, Up, Right(2), Left, Up	Gold Megatron in multi-player
Up, Down, Left(2), Right	Gold Optimus Prime in multi-player
Square, Triangle, Square, L1, X, L1	Seeker