Patent ID: 6932708

Claim:
A communication game system comprising: a plurality of client systems; and a game server for communicating with the plurality of client systems; wherein the game server is configured to operate in a regulation mode, wherein the regulation mode allows each of the plurality of client systems to exchange input data with an associated competitor, said associated competitor being included within the plurality of client systems; wherein a first client system, included within the plurality of client systems, has a second client system as the associated competitor of the first client system, the first client system displays an image based upon input data associated with the second client system, the image based upon input data of the second client system being different than an image associated with the first client system; wherein when the first client system sends input data associated with the first client system by including and specifying data to be nullified, the second client system applies a nullification process to the data to be nullified; and wherein the nullification process discards the data to be nullified.