A gaming machine having rotation control means for controlling a base member so that the base member is counterclockwise and clockwise rotatable, a first lottery ball introducing device for throwing in a lottery ball in substantially the same direction as a direction vector when the base member is rotated, a second lottery ball introducing device for throwing in a lottery ball in a direction facing the first lottery ball introducing device, lottery ball throw-in means for throwing in a lottery ball from any one of the first lottery ball introducing device and the second lottery ball introducing device, and lottery ball detecting means for detecting which one of the first lottery ball introducing device and the second lottery ball introducing device the lottery ball is thrown in from, wherein the base member control means has a function of determining the rotating direction of the base member on the basis of the detection result of the lottery ball detecting means. Accordingly, in a gaming machine such as a bingo game, after a lottery ball is thrown in, it is prevented from entering a lottery hole, and enjoyment of the game player is perpetuated.