In the aftermath of a nuclear holocaust is the scene, and the earth's surface is a hostile place, incapable of supporting human life. Long ago, the survivors withdrew to underground complexes, and now, after years of dedicated research, they have produced an android - CYBORG G4 who may provide the answer to their prayers.
The problem is that a race of unusual aliens have populated the earth and are less than keen to relinquish their newly found homestead. Even if CYBORG succeeds in exterminating the first few aliens, he will then have to contend with a multitude of the next breed which evolve from their remains! This process continues through four different strains of alien, each one progressively becoming smarter. Eventually, after polishing off the fourth breed, CYBORG will be faced with fivefold the originals again.... you see his problem!
Pure skill and judgement in controlling CYBORG are the assets needed to help him wipe out the aliens. Alien Evolution is played from a 3-D perspective looking down on the planet, and features transporters to zapp you from area to area.
Monochrome graphics and full scrolling are also included and overall a good time is to be had for those who enjoy a fast and furious challenge with a difference.
Careful selection of weapons is necessary as certain ones will only kill one type of alien. It may sometimes be useful to trap an alien or a group of aliens - this is possible by pushing blocks around the screen.