There would be rifles nested on fixed tripods that can be swiveled in any direction. The rifles don't actually shoot anything but they jerk back slightly when the trigger is pressed to give the sensation of a bullet being fired. I believe they shine an invisible Lazer bean out of their turret instead when the trigger is pressed. If you hit the little bull's-eye target you would get a mechanical reaction. Sometimes it would be cheesy, for instance there would be an animatronic man and next his head is a target. If you hit the target he would shout "hey, watch where you tooting that thing varmin".
There would be a target next to a barrel and if you shoot it,a dog would pop up and bark at you. Some of the things would even squirt water at you.
Lots of fun those things were.