To increase a foul ball withdrawal rate at a withdrawal port without decreasing a base area of a decoration member provided near the withdrawal port.

When a pachinko ball P placed to stand by in a shooting ball standing-by unit 114 is shot by driving a rotary lever 106 of a ball shooting device 100, when a foul ball which travels to a space between an outer band 36 and an inner band 37 but is returned without reaching a game region 40 collides with a pachinko ball shot next in a space and falls in an unexpected direction, part of the foul balls are made to flow in an inflow port 39B provided on a rail decorating object 39 and flow out from an outflow port 39E via a guide route 39D inside the rail decorating object 39. Thereby the foul ball withdrawal port 130 located on the right side of a guide tunnel 122 is allowed to effectively function for the foul ball to return to the guide tunnel 122, restraining the block of the ball from occurring.