To provide a technology by which the transfer of an object obtained during a game in a cellular phone communication game system can be performed among a non-specified large number of users.

An object which is obtained during a game by a first cellular phone is transmitted to a server together with a desired bid price and registered. Then, a second cellular phone receives the information from the server, and displays the information as a chart, and a desirable object is acquired. Or, the server registers the objects after classifying them under categories, and the second cellular phone designates the categories and displays them as a chart.