DeHackEd 1.3, the Doom.exe editor!  
Edit Thing, Ammo, and Frame tables
and create new monsters or modify
old ones.  Floating demons, super-
fast imps, invisible fireballs,
rapid-fire weapons, and more!  Two
patch files included, for super 
weapons and morphing monsters, or 
create your own!  Available ONLY 
for registered Doom.