Puckman was Namco. Pac Man was Midway in the US. I don't think a Puckman PCB should say Midway on it. That being said, there was all kinds of shenanigans with licensing and bootlegs back then. Is the text on the bezel and control panel in English or Japanese?
This thing looks all kinds of fishy. You could still buy it. Is the monitor good? Does it play well? How much are they asking for it? Do you have more pics?
The cabinet is the wrong shape, and the sideart is definitely not legit.