I think I can’t shoo that gimmick out until I let it stomp around and turn it up to 11. Develop it fully, let it go a little bonkers and cranked up, and then finish with it. Until then, it’s going to seem a little anti-climactic to get rid of it without letting it grab the microphone and shriek at least once.
It’s like the screenwriter’s saying: if you show the sword on the wall in Act 1, by Act 3, it better have been taken down and used. I need to use the sword so I can get it past me. I can’t just take it down and wave it around a bit and then make it vanish. There’s no point to having it then.