Cheat Mode:
During gameplay pause the game and press: R1, R1, L1, R1, L1, L1, R1, L1, R1, R1, L1, R1, L1, L1, R1, L1
Now the Options Menu will show the following cheats: Cheat Win, Clear Fog of War, Enable All Levels, Gimme $10,000, Player Invulnerable, Show LZs, Toggle Unit Spying.