First enter loosecannon16: cheat code enabled...

Ctrl F10                god mode
F10                     all weapons
F                       displays framework
CTRL-V                  displays game stats
F7                      displays grid over level
ALT-F7                  displays another grid
CTRL-F7                 displays yet another grid
Jassica16               Super Powerups!
H                       Enable Item Mover 

     In  addition  to  the in-game stuff, here's some more cheats that
are  entered  on to the end of the EXE line you use to start the game.
Suffixes, if you will.

 
-warp ??                = Level warp, where ?? is the number of the 
required level
-skill ??               = Change default skill level , where ?? is a 
number 1 to 99
-asylum                 = Displays message 'Enabling ENHANCED mode. 
(Not!)' and that's it.
-demo                   = Will continuously loop intro.
 
     Oh,  and  one  more thing. Amazingly, the old No Remorse ammo bug
still  works. Just drop your weapon then pick it up again to find that
it's been refilled. Mad.