Double Block

Double Block T3 is a 1979 discrete logic arcade game manufactured by Sega. The game sits in a cocktail cabinet to accommodate two players. The premise of the game combines elements of Pong and Breakout. Players control three separate paddles: the first used to hit the ball a la Pong, the second used to prevent the ball in the opponent's territory from escaping through the back line, and the third used to return the ball entering the player's own territory.

Block points are 20 for red, 40 for yellow, 60 for green and 80 for purple. Scoring varies by the number of rallies made by players, which are displayed at the side of the screen. Game over occurs if the ball passes through the back line, which opens when a player's score exceeds 1000 points.