Future Flash

Future Flash is a variant of the Atari arcade game Missile Command . You start the game with four fixed bases with which to defend your planet. Aliens swarm towards you from the top of the screen, and you must defend against them by launching missiles. Exploding missiles have a small blast radius, but anything within or entering that zone will be destroyed. Once sufficient aliens are destroyed, the wave ends and bonus points are awarded for the number of your bases remaining.