Operation: Matriarchy

Operation: Matriarchy cheat codes: 
Always make a backup copy of your game file(s) first: \Data\cfg\config.cfg
Edit the following file in your favourite text editor, such as Notepad:

\Data\cfg\config.cfg

That is of course a path within your installed game directory.
Change any of the lines as shown above to enable the cheat effects.
You are just basically changing the last character from 0 to 1 to
enable an effect:

set ai_disable 1      - Prevents the enemies from moving or attacking
set cg_drawFps 1      - Graphical Frames Per Second displayed on-screen
set cg_drawTarget 1   - Show information about an enemy or object that
is within your targetting reticle.
set developerMenu 1   - Enable the Developer Menu items adds extra options
in the Main Menu system and other menu's.
set god 1             - Enable God Mode
set physics_disable 1 - Disable the laws of Physics
set r_debugVis 1      - Show Debug Information about meshes and such
set r_debugVisBox 2   - Show Debug Boxes (like wireframe) on objects
set wheelSpeeder 1    - ??????