Transformers: The Game

					
Get Infinite stealth
Enter at Autobot HQ:

UP,UP,DOWN,DOWN,L1,L2,L1,L2
Various cheat codes
Enter the following button codes during the "Difficulty Select" screen to get the desired results
Code - Wirkung

R1, Circle, R1, Square, Left, Left, Right, Left – Alaska Level Complete

Circle, Circle, Circle, Square, L1, L1, L1, L2 – Big Head Mode

Left, Right, Left, Left, Right, R1, R2, Circle – Deep Amazon Level Complete

R2, R1, L1, L2, Square, Circle, Square, Circle – Earth Level Complete

Circle, Square, Circle, Square, Right, Left, Left, Right – Mid Atlantic Level Complete

Left, Left, Right, Circle Circle, Right, Right, Left – Starship Level Complete

L1, R2, R2, Square, Square, Square, Square, L1 – Turbo Mode