He’s in court for lying to lenders about how much he was worth. There may be some tax fraud (there certainly is), but that’s incidental to the case.

Namco had a chain of arcades in the US, which was pretty wide spread, so I guess it made sense to mint their own coins. Chuck-e-Cheese, another chain of arcades (and other younger-kid oriented attractions), had their own coins too. I think most one-off mom and pop places had a generic coin or directly accepted quarters, but there were probably a few other regional chains which had their own coins.