THeAEDUDE

which is what Mrcaptain just said, DOH.

I am not positive but I believe there may be a clever work around,

I believe you can control the "kill all" Nav bar text to say something much more generic like "stop the do-gooder plot".

When the collection is activated have a boss spawn who's nav bar name is
"kill all the do-gooders to stop the plot" . You will have to make sure that

1. the boss spawns at the other side of the map from the last collection, otherwise the player may kill the boss before most of the map is cleared. A front spawn with a back collection should work. The boss counts as a creature so make him an ordinary minion and hope that his group is the last one to get killed

2. In the event that the player kills this boss before he kills all the creatures the kill all message will be dropped so have a clue to the affect that there may be something still alive. awarded at the death of this boss.

its not perfect but try it.

I want to create a unique boss with a unique mini boss, for example Homer and Marge Simpson. It works the way I am doing it only if solo and players set to + 0.

What if anything can I do?

Rule 1: Marge must spawn with or very near Homer (conversation range).

Rule 2: There can be only 1

Rule 3: There must be a Marge, There must be a Homer.

Rule 4: Lets say Bart is the final boss here, so I need middle spawn solutions if possible.

I don't care if marge and homer spawn with others, but adding them to the equation has always resulted in either Homer + Multiple Marge, or Homer + multiple other, no Marge.

I have tried making Homer an ally that betrays but the same problem occurs, when set to single he appears alone, when set to easy you get multiple Marge with players +1.