Insert the following codes at the main menu (where campaign, bonus, et cetera can be seen). The screen will flash if the code is inserted correctly.

  • Jazz G1 Skin - left, up, down, down, left, up, right
  • Optimus Prime G1 Skin - down, down, up, up, right, right, right
  • Starscream G1 Skin - right, down, left, left, down, up, up