Warlords

[Wikipedia: http://en.wikipedia.org/wiki/Warlords_%28video_game%29] Warlords is an arcade game released by Atari in 1980. The game resembles a combination of Breakout and Quadrapong (an early Atari arcade game) in the sense that not only could up to 4 players play the game at the same time, but also the "forts" in the four corners of the screen were brick walls that could be broken with a flaming ball.