Various cheats
     Enter these codes and kill them dang aliens!

Cheat code:             Effect:
rdall                   all items and full health
rdallkeys               all keys
rdclip                  toggle clipping on and off
rddebug                 debug on\off
rdelvis                 god mode on\off
rdfuckngoXYY            go to episode (X) and map (YY)
rdguns                  all guns
rdinventory             all inventory stuff
rditems                 all items
rdmeadowXYY             go to episode (X) and map (YY)
rdmonster               toggles enemies on and off
rdrate                  shows framerate
rdSkill#                change skill level from 1-4
rdunlock                toggles locks