A collection of alternate deaths and gib deaths for stock Doom monsters, available for modders to implement. Does have states included in the Info lump, but none are implemented.
Still a potential work in progress. If you have any deaths you'd like to add, send a message to Ghastly on the forums.
I've had this idea in my head for quite some time, using DECALDEF to create cool animations on the walls. You could create groovy disco lights, team-icons for CTF bases, projectors etc. using animated decals. I've never seen it done before though so I thought I would submit this to FX as an example (which is useful in its own right for maps)