PURPOSE: To provide a game machine, by which the pattern display of a slot machine can be changed easily.

CONSTITUTION: When the power supply of a slot machine 1 is turned on, display data previously stored in a RAM 36 in a display control circuit 31 is read out to display a pattern on a LCD 38 for forming three turning barrel parts, and when a start instruction is inputted by the operation of a lever 10, a main control circuit supplies a driving signal to each motor to rotate the motors per turning barrel part, and also the display data is transmitted from the main control circuit to the display control circuit 31, and display data stored in the RAM 36 is reloaded to change a pattern displayed on LCD 38. When a stop button 11 assigned to each turning barrel part is pressed down, the turning barrel part is stopped according to the press-down timing of each stop button 11, further the transmitting of display data is stopped, and various kinds of prize winning conditions are discriminated by the combination of patterns displayed on the stopped LCD 38, and coins are discharged according to the discriminated prize winning condition.