Hitman Trilogy Cheats

Open the console. Type "ip_timemultiplier x" where x is a POSITIVE integer.
The default value for x is 1. (Normal Game Speed)

You can set it to:
0.01-0.3 for Slow Matrix
0.31-0.6 for Matrix Walk
0.61-0.99 for Beginner's Slowmotion
1.01-5.00 for Blitz Mode (Ultra-Fast Gun Firing and Moving)
5.01-25.00 for Ultra-Madness Blitz

Note: This should NOT be done on VERY slow computers as it will cause the loading time to be very long and produce slow, choppy movements.