I dunno if I should revive this, but it is one of the discussion threads for in-game SCPs, so [expletive] it...

I may also have mentioned this somewhere, but can't we have Nine-Tailed Fox react to ringing The Cowbell in some way, be it moving to the location where it was rung (The player) or having them seeing the -1 instance shortly after the player leaves the room?
The Nightmares...will last...FOREVEEEEERRRRR!
In the event that Nightmare Tank tries to take charge, Dr. Glitch is to warn it, until it ceases its behaviour.