Pachinko Parlors are like our casinos.
Hundreds of pachinko (upright pinball) machines kept the locals happy
and spending yen like there's no tomorrow! The machines you see in the
foreground are not Pachinko. The ones in the rear, with the tilted
trays on the front are. It's a vertical pinball game and as balls
are "won" they fall into the trays in front.
I brought some of these back from Okinawa and will post a close-up of one when I can find (or take) a photo of it.