For one thing, it’s blue, and outside of the short-lived animated series The Real Ghostbusters, who ever heard of a blue proton pack? So one major change was to paint it matte black and age it ...

Returning to the supernatural streets of New York in "Ghostbusters: Frozen Empire," the original ... proton packs. "Wearing the damn packs, they are really heavy," said Murray. "Wearing the pack ...