To change the progress of a game executed in a moving terminal according to the present position of the moving terminal.

A cellphone receives control signals radio-transmitted from a base station controlling a radio area where the cellphone is presently positioned, out of a plurality of base stations. The received control signal is demodulated to detect a base station ID code which is stored in an ID code storage area. Update processing of the base station ID code is successively executed during waiting time, so that the latest base station ID code is stored in the ID code storage area. In the progressive process of the game, an opponent character, generated items and branching of a game scenario are controlled according to the value of the base station ID code stored in the ID code storage area (steps S205-S213).