All Working Hitman: Codename 47 Cheats - PC

Max Payne style mode (slow-mo)
Just press the scroll lock button during the game and the game slows down, however, just like the bullet time mode in Max Payne, the mouse pointer moves at a near normal rate, allowing you to accurately take out (head shot) numerous guards in a matter of seconds, and then press the scroll lock button again to remove the slow-mo style.

Multiple Gun Combo Trick
This trick will let you have up to 15 rounds in any gun.

1. Make sure that you have a Beretta 92 in your inventory.
2. Select the gun you want to have 15 rounds in, and make sure that is the ONLY thing you are holding.
3. Drop the gun on the floor.
4. Take out your Beretta 92 and pick up the gun you just dropped.
5. You will be holding both guns at the same time, and you will have 15 rounds in both guns since they always shoot together.

Bug Explotation
When you have completed all the mission objectives, don't exit yet. Instead, press F1 for the mission status screen to appear. When the "success" message appears press ESC to go back to the game. Then repeat the process. Each time you will be paid the reward for the mission.