Abstract: When a game is started, the game execution time is counted by a counter and a determination is made as to whether or not the execution time coincides with a timer value which is set before the game is started, so that the game is forcibly ended upon coincidence. When the game is forcibly ended, the game content before the ending is preserved. Thus, it is not necessary to do the game all over again, in order to restart the game.

Abstract: A cathode ray tube is coupled to an electric circuit to display characters on the screen thereof through horizontal scanning and vertical scanning. A plurality of characters are displayed in one character group comprising characters arranged in rows and columns. A dispaly signal for displaying such characters is obtained from a random-access memory, which comprises a plurality of storing regions having addresses corresponding to the characters arranged in rows and columns forming a character group. When characters are to be displayed the logic one is loaded in the storing regions of the corresponding address, and when the characters are not to be displayed the logic zero is loaded in the storing regions in the corresponding address. The horizontal address of the random-access memory is determined by a counting operation for performing horizontal scanning, while the vertical address of the random-access memory is determined by a counting operation for performing vertical scanning.

Abstract: A light shooting apparatus for amusement including a target structure with a photoelectric sensitive element and a light emitting gun, whereby, upon a successful shooting, a light beam enters into the photoelectric sensitive element from which a signal is generated to effectuate a control circuit so as to cause the target structure to fall down and display a "hit".