Here is the complete collection (as far as I know) of the Real Ghostbusters role play weapons.
God this may have been one of my favorite GB toys I played with this thing forever and I still have the same one to this day, though I did loose my cool Styrofoam proton stream.
Here is the Ghost Popper the predecessor to the Nerf gun. I lost the "bullets" pretty quick after getting this toy.
I had this one as a kid it had a shorter proton stream than the Proton
Pack, but it was wavy and there was a crank on the side that would turn
the stream around to give it a cool effect.
This was probably on of the cheapest RGB Weapons it was a simple pump
water gun. You would pull the front part out, and as you pused it back
it would shoot water out.
This one was pretty cool, you would stomp your foot on the pedal and it
would send air to the trap to open and close, practically identical to
the way it works on the show. This is the only weapon from the RGB
toyline that worked like it did on the show.
Ghost Trap: A Closer Look
Ecto Goggles and Ecto Popper
Here is the famous ecto goggles, Rays favorite GB gizmo. It also came
with the Ecto Popper, it was a simple little thing made out of rubber.
You would put in the "Nerf Bullet" and squeez the popper, and pop it
would blow out.
Thanks to Brian for sending these pics of the wonderful Ecto Charger
This item looked very similar to the Ghost Popper, but instead it was a
projector like toy that wwould show "Ghosts" on the wall when you would
turn it on.
I never had this one, but i guess that it was like a voice changer that would scare those ghost away.
Rapid Fire Ecto Blaster
Here is the Rapid Fire Ecto Blaster, which was very similar to the Ecto Popper except for a "rapid release" system above the barrel of the gun that dropped in a new nerf bullet every time you shot one
Here is the Ghost Grab-a-meter i never had this one, but i assume that
it is much like the toy claws. Except it had a little gun that would
launch darts as well.