Enter The Matrix

Cheat mode:
Enter the Hacking engine in the game. Enter CHEAT.EXE and the 
cheat menu will be unlocked. Enter one of the following codes 
to activate the corresponding effect.

Maximum firepower:
Enter 0034AFFF as a code.

Unlimited ammunition:
Enter 1DDF2556 as a code.

Unlimited focus:
Enter 69E5D9E4 as a code.

Fast focus restore:
Enter FFF0020A as a code.

Unlimited health:
Enter 7F4DF451 as a code.

Sparks' Construct in training mode:
Enter 13D2C77F as a code. 

Enemies cannot hear you:
Enter 4516DF45 as a code.

Enemies cannot see you:
Enter FFFFFFF1 as a code.

Turbo mode:
Enter FF00001A as a code.

Multi-player fighting:
Enter D5C55D1E as a code.

Low gravity:
Enter BB013FFF as a code.

Faster logos: 
Enter 7867F443 as a code.

Taxi Driving:
Enter 312MF451 as a code.