Anthony, technically a lot of those are positional gun games. A positional gun is physically just a fancy joystick (more like a Star Wars yoke really). Just a minor point really, but the Exidy gun games, T2, Golly Ghost!, Revolution X, T2 and maybe another half dozen all used positional guns.
Positional gun games might be a bit too easy or hard with an actual light gun, depending on how they work. I imagine the Exidy games would be too easy with a real lightgun, but "hold down the trigger and shoot" games like Terminator 2 and Rev-X might be a lot harder (do any of the PC light guns out now even let you hold down the trigger and spray around rapid fire?)