A recording medium, a computer and a method for executing fighting games in an entertaining system make the exchange of combat moves by pushing simple ON/OFF switches an easier-to-use interface for users. The recording medium has a program that has a processing program that varies the destructive power and defensive power inflicted by characters within a screen of the computer, depending on the output of a controller of the computer. The method of executing a fighting game senses a pushing pressure of a user on the controller by a pressure-sensitive unit of the controller, converts same to a pressure-sensed output, and determines the destructive power and defensive power of the moves dispatched by the characters within the screen according to the pressure-sensing output of the controller. The computer has a unit which senses the pushing pressure on the controller and converts that pressure to a pressure-sensing output, and a unit which determines the destructive power and defensive power of the moves dispatched by the characters within the screen according to the pressure-sensing output of the computer.