Space Invaders is yet another classic arcade game remake by Activision (see Battlezone and Asteroids). But this time, Activision licensed a game from Taito instead of Atari. The game stays close to its roots while adding many power-ups and enemies. In 1978, Earth successfully repulsed an invasion from outer space thanks to "the Tank." The Tank was based on alien technology. 20 years later, a new Tank has been created. And none too soon, because the Invaders are back! (mobygames.com)