I loved lightgun games on the old systems, and I think the Sega Saturn's Stunner was the best hardware of the lot. The obsolescence of CRTs pretty much killed the tech, but the gameplay style has made a bit of a resurgence a couple times with the advent of the Wii and VR.
How many times did you lose your save file from not ejecting in time before you removed the little cover over the eject button?
Too many to count, I almost tore that cover apart but kept it for immersion...