Abstract: When a trigger signal is outputted from a simulated gun 30A to 30D, a trigger image is displayed on image monitor means 20 in response to the trigger signal. In response to a timing signal of the simulated gun 30A to 30D, an indicated position, a value of an image display counter 12 at the time is set in a register 13. Coordinate values of the indicated position of the simulated gun 30A to 30D set in the register 13 is inputted to a game control unit 14 in a horizontal flyback time of a scanning line. The indicated position detection processing for detecting indicated positions indicated on the image monitor means 20 by the simulated guns 30A to 30D is performed at every horizontal scan displaying the video screen. The video screen indicated position detecting method and device is quick in responding to an indication even when a plurality of indicated positions are detected, without increasing costs of the device.