Zandronum

I think about trying to make a revivable monster that doesn't revive unless by a specified reviver.

For example, a cyberdemon is revivable, but an archvile couldn't revive him. So an archvile that is twice as big can be able to revive a cyberdemon.

Is that possible for having a specified reviver to revive bosses like that?

Unfortunately not that I'm aware of, and I've looked into that stuff.

In general; if it's not in the ZDoom wiki, it doesn't exist.

I guess you could do this hijacking the Death state of the boss so that it loops on an A_JumpIfInventory("Reviver",1,"FakeRaise") and have the reviver give "Reviver" to the boss when it comes near the boss corpse but then you'd have to go back and recreate A_VileChase on the reviver through A_JumpIfCloser shenanigans.

That's good to hear. Would you like to upload an example wad via mediafire?

I love to test that wad out.