Codes :
1. Pause the game. Hold L2 and press: Up, Down, Left, Right, Triangle, Cross, Square, Start.
2. Pause the game. Hold L2 and press: Up, Down, Left, Right, Triangle, Cross, Cross, Triangle, Right, Left, Down, Up, Start.

Hidden characters:
Hold R1 + R2 + L1 + L2 and press Circle, X, Triangle, Circle, Circle, X, Square at the options screen.

Weapon Power Up:
Pause the game. Hold L2 and quickly press Up, Down, Left, Right, Triangle, X and Square. Continue to hold L2 and unpause the game.

Complete the Current Mission:
Pause the game. Hold L2 and quickly press Up, Down, Left, Right, Traingle, X, X, Triangle, Right, Left, Down and Up.Continue to hold L2 and unpause the game.

Missile Lock:
To use the Missile Lock, hold the FIRE button after shooting to lock the missile on an enemy.

Playing Tip:
If you're playing as the Maximals, use Cheetor in Polluted levels and Optimus in other levels. If you're using the Predacons, use Megatron in Polluted levels and Inferno in other levels.

Super Weapons:
While playing quickly press Up, Down, Left, Right, Triangle, X, Square.