Conflict - Desert Storm cheats and cheat codes for Playstation 2

Cheat mode:
Go to the main menu, then press 
Square, Square, Circle, Circle, L1, L1, R1, R1, L2, L2, R2, R2. 

Begin a game, after pause game play and jump to the options screen. 
You will see the unlocked "Cheats" option at the options menu. Pick 
on "Cheats" option, after you can select "Trooper Level", "Enemy AI", 
and "Mission List" cheat options.

Different cheat Mode:
Press Square, Square, L1, L1, R1, R1, L2, L2, R2 and R2 at the main menu. 
The cheats can be viewed in the in-game menu. 

Various Cheats
These codes require the PS2 keyboard. During gameplay press the following: 

K - Invincibility toggle 
Y - Reverse Aim 
X - Pauses Game 
L - Show debug info 
- Menu toggle