Most of us already know of these. And, I might be wrong, but I thought Dim light worked.

Also leaf, fire, and lava were replaced by tileset animations. (Found in Diamondus and Dam*)

The TSF cat is not unknown at all, it was a new baddie they added to TSF. It barks because they couldn't (for some reason) add any new sound-effects to JJ2. (Maybe someone else can clarify this.)

The pos in start pos has to do with having sep. start positions. It would be used in multiplayer. If you die, you start on the next one, etc. (However, it is rendered useless by the Mulitplayer Start pos.)

The EMPTYs obviously do nothing. Epic probably was going to add some properties to those events, and ended up not finishing them. They are really just placeholders.

The laser shield was disabled because it was TOO powerful a weapon.

Finally, all those enemies and bosses weren't finished in time for the release of Jazz. They still appear in the list, because Epic never trimmed them out. (It is strange that we received the game in this uncomplete form. Still, it is nice to know what they were thinking of putting in, but either changed their minds or didn't finish in time.)

AJ2f