Patent ID: 7128649

Claim:
A game machine for providing each of a first player and a second player with a game allowing a player to enjoy operation of the game using a controller according to game music, comprising: timing acquisition means for acquiring game operation timing at which each of the first player and the second player operates the game; timing guidance means for presenting game operation timing at a predetermined guidance level to each of the first player and the second player; game operation evaluation means for verifying the game operation timing acquired by the timing acquisition means with the game operation timing presented by the timing guidance means to evaluate game operation by each of the first player and the second player; and guidance level changing means for changing the predetermined guidance level with respect to at least one of the first player and the second player, based on a result of evaluation made by the game operation evaluation means, said changing with respect to the first player being based on a result of evaluation of the second player's game operation and said changing with respect to the second player being based on a result of evaluation of the first player's game operation.