They actually have a slot machine called this. When I first spotted this machine, I thought, that is an insult to players. "Who is going to sit down and play that machine?"
Well, a lot of people! Durring my stay at Main Street Station (they only have one of these machines) it was getting a great deal of play. It's located just outside the MSS brew pub.
It's a 4 reeler but realy plays like a 3 reel machine, with a bonus 4th reel. The 4th reel is a multiplier real of what you had won on the first 3 reels. 3 coin game, basic blazing 7 machine, with the 3rd coin activating the bonus 4th reel pay scale. With a top jackpot of 10,000 coins with 3 Blazing triple 7's shown on the line with a 10X symbol on the 4th reel. Main Street Station is the only place I seen this machine, and again, just this one machine.
Made by Bally's gaming.