Tapper is an arcade game that was released in 1983 by Bally Midway. You play as a bartender who must serve thirsty patrons as quickly as possible. To serve a customer, move to the appropriate tap and fill the mug up to the top. Once the mug is full, it will slide towards the customer. You'll also have to catch the mugs that slide back to you when the customer is finished. Breaking a mug or failing to serve a customer will result in losing a life.