It's very interesting that this was brought up. In “Making Ghostbusters” it shows in an earlier draft after the guys bust Slimer while they talk with reporters, a street pnuk approaches Egon in which the dialogue is as follows…
STREET PUNK:Mister! Hey Mister! Come here! Mister.
He finally gets Spengler's attention and waves him over.
STREET PUNK(CONT'D):Hey Mister! Can I see those guns?
SPENGLER:They're not guns. They're particule throwers.
STREET PUNK:Yeah, yeah. I just want to see ‘em.
SPENGLER:I couldn’t do that. You might hurt someone.
He turns away.
STREET PUNK:Wait! Wait! Let me ask you something. If you like shot Superman with those guns, would he feel it or what?
SPENGLER(with authority)

n Earth-no. But on Krypton we could slice him up like Oscar Mayer Balogna.
STREET PUNK:Wow!
I would like to see the movie the way it was originally pictured by Dan Aykroyd. That would be pretty weird. Belushi and Aykroyd in outer space with a dematerializing car etc…lol
Zack