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.