Developed by Dr. Egon Spengler and Dr. Ray Stantz after their residencies at Columbia University, the proton pack fires a stream of protons via a wand for use in paranormal investigation and capture.

Revealed on Twitter, this Ghostbusters crossover brings in character skins, Ghost Trap and Proton Pack Back Bling, an Ecto-Glider, and a Proton Pickaxe Harvesting Tool.

Usually with a proton pack made out of a cardboard box to go with it. All in the hopes of catching a pesky spook. Well, even if you made one of those as a kid, chances are it’s long gone. Just Geek ...

Be sure to back the Ghostbusters Plasma Series Spengler's Proton Pack HasLab right here for $399.99.

Manually switching to your proton pack takes too long as the stun will wear off before you can start tethering. Tossing out your trap first speeds up the process because that action auto-switches ...

I idolized Peter Venkman and Egon Spengler and spent entire days busting ghosts with my proton pack, ghost trap, Ecto-Goggles, and PKE meter. For "Ghostheads" — diehard fans of the franchise ...

With the Ghostbusters Proton Pack ($15), kids can imagine gearing up for their own ghost-busting adventures! Plus, they can keep all of their other Ghostbusters toys gear in their packs.

In the old days, it was pretty easy to be a Ghostbuster. You had your Proton Pack, trap, PKE meter, Ecto-goggles -- and you were set. Since then, the equipment's gotten more and more complicated ...