TRANSFORMERS: THE GAME

Unlimited health:Press Left(2), Up, Left, Right, Down, Right at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry.
No traffic, police, or military:Press Right, Left, Right, Left, Right, Left, Right at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry. The only vehicles remaining will be parked.
Play as Optimus Prime Generation 1 version: Press Down, Right, Left, Up, Down(2), Left at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry. Select the "Bonus Features" option then the "Generation 1" option to use the new appearance.
Play as Robovision Optimus Prime:Press Down(2), Up(2), Right(3) at the "New Game" main menu. The screen will flash red to confirm correct code entry. Go the "Bonus Features" option then the "Generation 1" option to select "Robovision Optimus"
Play as Starscream Generation 1 version: Press Right, Down, Left(2), Down, Up(2) at the "New Game" main menu. The screen will flash to confirm correct code entry. Select the "Bonus Features" option then the "Generation 1" option to use the new appearance..
Play as Jazz Generation 1 version:Press Left, Up, Down(2), Left, Up, Right at the "New Game" main menu. The screen will flash to confirm correct code entry. Select the "Bonus Features" option then the "Generation 1" option to use the new appearance.
Play as Megatron Generation 1 version: Press Down, Left(2), Down, Right(2), Up at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry. Select the "Bonus Features" option then the "Generation 1" option to use the new appearance.
Ammo no reloaded:Press Up, Down, Left, Right, Up(2), Down at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry.
All missions:Press Down, Up, Left, Right(3), Up, Down at the menu with the "Campaign", "Bonus", and "Options" selections. The screen will flash to confirm correct code entry. All missions including the two special missions will be unlocked.
Bonus Cybertron missions:Press Right, Up(2), Down, Right, Left(2) at the menu with the "Campaign", "Bonus", and "Options" selections and start through replay missions. The screen will flash to confirm correct code entry.
Generation 1 Megatron:Collect all the Transformer Shields in the Decepticon story line.
Generation 1 Optimus Prime (cartoon model): Collect all the Autobot Faction Symbols in the Autobot story line.
Generation 1 Robo-vision Optimus Prime: Successfully complete the Autobot story line. Hint: Defeating the cement truck Decepticon: When you are fighting the cement truck Decepticon as Ironhide, to knock him down transform and run him over. Then, pick him up and throw him.