All Weapons:
Enter 0034AFFF as a code in the cheat menu to unlock all the weapons.
Invisibility:
Enter 13D2C77F as a code in the cheat menu to unlock invisibility.
Infinite Ammo:
Enter 1DDF2556 as a code in the cheat menu to unlock infinite ammo.
Infinite Health:
Enter 4516DF45 as a code in the cheat menu to unlock infinite health.
Infinite Focus:
Enter 69E5D9E4 as a code in the cheat menu to unlock infinite focus.
Double Movement Speed:
Enter FF00001A as a code in the cheat menu to unlock double movement speed.