A ball drop mechanism for a game apparatus has a mechanism allowing to drop balls one by one on a desired location. The ball drop mechanism includes a housing that stores balls, a cylindrical ball passage connected to the housing, and a cogged stopper that is located in the housing near the ball passage. One side of the cogged stopper has a hollowed portion that matches a circumference of the ball passage. A golf ball dispenser is established by installing the ball drop mechanism for a game apparatus. The golf ball dispenser has a plurality of ball cylinders which install and guide a large number of golf balls and has a golf ball placer with a seesaw movement mechanism to place a ball accurately on the ground.