1. A game machine, which displays a game screen showing a situation of a game space in which an operation subject player character that acts according to a user's operation, fellow player characters belonging to the same team as the operation subject player character, and a moving body character that represents a moving body, are located, and which executes a game of a sport played by using the moving body between the team to which the operation subject player character belongs and an opposing team, comprising: linkage partner selecting unit for selecting a linkage partner player character from among the fellow player characters; type of linkage play selecting unit for selecting a type of linkage play automatically without input from the user; linkage partner control unit for controlling, after the type of the linkage play and the linkage partner player character are selected, a position of the linkage partner player character selected by the linkage partner selecting unit based on the type of linkage play selected by the type of linkage play selecting unit, at least until a pass instruction operation is performed; and pass execution unit for, in the case where the pass instruction operation is performed by the user, causing the operation subject player character to execute a pass in a direction within the game space based on a content of the pass instruction operation if the linkage partner player character has not been selected by the linkage partner selecting unit, and causing the operation subject player character to execute a pass to the linkage partner player character if the linkage partner player character has been selected by the linkage partner selecting unit, wherein a strength and a direction of the pass to the linkage partner player character is automatically determined based on a position of the linkage partner player character and a position of the operation subject player object.