A play facility for a remote-control system including a transmitter 2 and a drive device 1 remote-controlled by drive data transmitted by the transmitter. The play facility includes a scramble signal generating device 106 which generates scramble signals to interfere with the remote control of the drive device by the transmitter, a scramble signal outputting device 55 which outputs the scramble signals to the play field, and a scramble signal control devices 100, 104 which switches between output and termination of the scramble signals from the scramble signal outputting device according to predetermined conditions.