To prevent troubles relating to game rights in game machines as much as possible by an extremely easy operation.

When receiving guest calling signals from a remote controller 10 carried by a game hall employee, a control circuit provided inside a calling lamp unit 3 transmits calling broadcasting start signals to a management device 6. When receiving the calling broadcasting start signals, the management device 6 repeats guest calling broadcasting for calling a guest inside the game hall to a pachinko stand 1 corresponding to the calling lamp unit 3 for a stipulated number of times at a prescribed time interval. Also, the control circuit detects whether or not the pachinko stand 1 is turned to an operation state on the basis of the number of out balls, and the management device 6 forcibly ends the repeating operation of the guest calling broadcasting when it is detected that the pachinko stand 1 is turned to the operation state.