This (imo stupid) slot seems like a newer one that's popping up. I just visited Firekeepers in Michigan this past weekend and happened to see it there. HOWEVER... the shotguns that are seen in the promotional video (youtube) were nowhere in sight. Did the casino just not buy that version of the game? Seems unlikely since there were "holsters" for the guns right next to the machine.
I wonder if they originally had them but took them out in reaction the Colorado shootings? Has anyone else experienced the shotguns being there one day and gone the next recently?