Patent ID: 7485042

Claim:
A game machine for executing a predetermined game in response to a player's operation, comprising: a display for displaying a game screen; operation switches operated by the player; communications section for performing data communications among at least one other of game machines; start timing synchronization section for establishing start-timing synchronization with said at least one other of the game machines in the game by communications via said communications section; prompt information storage section for storing operation timing data previously defining an operation timing of said operation switches to be operated by the player; a display controller for having, in response when the game is synchronously started, said display display information about the operation timings of said operation switches to be operated by the player based on said operation timing data; first operation timing storage section for storing data relating to the operation timings of said operation switches operated by the player responding to the information displayed on said display; second operation timing storage section for acquiring and storing the data which is stored in said first operation timing storage section of said at least one other of the game machines through communications via said communications section; and correlation evaluation section for evaluating correlation in terms of game operation with said at least one other of the game machines based on the data stored in said first operation timing storage section and said second operation timing storage section; wherein said correlation evaluation section evaluates whether both the timing based on the data stored in said first operation timing storage section and the timing based on the data stored in said second operation timing storage section are in a predetermined range of each other.