Wow, this just hit me with a wave of nostalgia. There was a roadhouse bar on the outskirts of town, my dad would take me along with when he went day drinking with his buddies (late 70's/early 80's, things were a little different back then lol). They had a Nags, and an EM shooter called Arctic gun. I'd get a fist full of dimes from my dad and his pals and play them all day. I've never seen either of those two games again after that place moved them out in the early 90's and put in more modern games like Addams Family and Elvira and the Party Monsters.