Tapper is an arcade game where players take on the role of a bartender serving drinks to customers. The objective is to keep up with the incoming customers, fill their glasses with beer, and collect the empty glasses before they reach the end of the bar. The game becomes increasingly challenging as the pace of the customers’ arrival and the number of glasses to be collected increase. If the player fails to keep up with the customers or allows too many empty glasses to reach the end of the bar, they lose a life.