Rapid Fire

You would think that guns were a new invention in the 80's, especially considering all the action movies where the plot revolved around some kind of "SUPERGUN!!!~!" Prime examples of this are Equalizer 2000, and to a lesser extent, Blastfighter.  These are the types of guns that people kill for, and in the right hands they're strong enough to change the outcome of a war.  Well, you can add Rapid Fire to the list of movies revolving around a gun, and in this case, it's a multi-purpose gun that fires 3 different kinds of rounds - shotgun, machine gun or grenades - depending on which barrel is active.  Oh, and one more thing, if you don't know the secret code, you'll be on the receiving end of an asswhippin' yourself.