Star Trek Voyager - Elite Force 2

Cheatmode demo:
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Enable cheats with  the command line parameter 
+set ui_console 1 +sv_cheats 1. To do this create a shortcut 
on your desktop to the game and modify the properties to read 
something like "C:Program Files\Activision\Star Trek Elite 
Force II Single Player Demo\EF2.exe" +set ui_console 1 +sv_cheats 1 

During gameplay press ~ to get the console.  
Now put in any of the following codes 

Code       Result 
-----------------
noclip   - No clipping mode 
god      - Invincibility 
notarget - Invisible to enemy