Missile Command is an iconic arcade-style shoot 'em up game for the Atari 2600, where players defend cities from an onslaught of ballistic missiles. The objective is to protect six cities on the ground by launching counter-missiles from three stationary defense bases. Using a trackball in the arcade version or joystick controller on the Atari console, players aim at incoming projectiles and trigger explosions to intercept them. The game escalates in difficulty as waves of faster and more numerous missiles appear. Its blend of strategy and action has made it a classic in the shooter genre.