What we have here, is a very rare, prototype of Chicago coins Rocket shuffle. This is a factory modification. Normal production rocket shuffles, have the front section as a 6ft puck bowler lane. Which you slide the puck down to activate the lane rockets to pop the balls in that line. This one was made with space in mind, for location that didn't have the space for the full size, or to test the mechs of the machine. So this version has buttons to push to pop the lane. You get 10 chances to pop a lane. When you get 3 , 4 or 5 in a row, you hit a button to collect the points. Which pops the entire grid. So you have to decide to try for higher scoring, or just collect what you have. Never the same game twice. Works for the most part. Sometimes some of the 3 in a rows won't trigger, so there must be a switch that needs adjusting somewhere. it's still a beautiful game, and extremely rare. Most people have never seen this version. And doesn't take up that much space. I have put wheel castors on it, for easy moving around. each wheel is adjustable for easy leveling. Located in SE WI. Available for pickup or delivery.