If you are a huge fan of Ghostbusters then you should check out for this cool Ghostbuster proton pack backpack below. It comes with removable proton gun. It has zippered main compartment, zippered front pocket, adjustable straps and spacious zippered secondary pouch in the attached gun. Great for school or just for fun. It also make a great accessories for costume day such as Halloween. Great for any Ghostbusters fanatics. Get one for your collection today.