Ghost busters SZ costumes could be like those big puppet costumes you see in parades where actors walk at ground level and the puppets rise up twice their height and then lit from inside or made of a mesh fabric so they appear see through. Still walkers, humans fleeing, small scenes a la psychosscareapy where some of the more iconic ghosts show up or the GBs show up and capture one. They could have those big UV lights up on the buildings and actors costumes can be UV reactive so they Glow more and create a ghostly look. I think a GB SZ might sound like one of the most fun ideas ive ever heard (at least in theory)