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Story

In the year 2000 of the history of the cosmos, representatives of many different planets in the galaxy established a congress called the Galactic Federation. A successful exchange of cultures and civilization resulted, and thousands of interstellar spaceships ferried back and forth between planets. When space pirates appeared to attack the spaceships, the Federation Bureau created the Galactic Federation Police.

There are many unknown planets throughout the galaxy. Many of these are causes of concern to the Galactic Federation. To take care of this, they employ Space Hunters, the greatest of which is Samus Aran.

Samus' greatest achievement has been the destruction of the pirates' Metroid plans on the planet Zebes. In the year 20X5 of the cosmos, an unknown life-form was discovered on planet SR388 by a Galactic Federation deep-space research ship. The research crew took a sample of the creature and placed it into a suspended animation stasis capsule and dubbed the life form "Metroid". On their way back to their home base, the research ship was attacked by pirates who stole the stasis capsule containing the life-form!

The Metroid in suspended animation could easily be brought back to life, and exposure to beta rays was all that was needed to cause it to multiply. This highly dangerous creature will cling to any other creature and suck away its victim's energy.

Samus, by order of the Galactic Federal Police, successfully and single-handedly penetrated the space pirates' natural fortress on the planet Zebes. After a series of intense battles, Samus destroyed all the Metroids she encountered. Her destruction of the reactivated Mother Brain at the center of the fortress crushed the pirates' evil plans.

After serious consideration of how terrible and destructive the Metroid life form was, the Galactic Federation sent another research ship to SR388. This trip was to make sure there were no more Metroids left on the planet.

After a short time the Federation received an emergency notice from the research base. They had lost contact, and the research ship was missing. The base had already sent a search and rescue party, but after their initial contact, the rescue ship was not heard from again.

A special combat group was assembled consisting of armed soldiers from the Federation Police and was immediately dispatched to SR388. After transmitting their primary landing data, they also were never heard from!

Rumors spread fast, and again, the whole galaxy was seized with the fear of Metroids.

With this limited information, the Federation was positive that a Metroid must still be surviving, hiding deep in the planet underground. Even one living Metroid could easily wipe out an entire planetary civilization. So, the Galactic Federation called its members to an urgent conference to find a way to overcome this menace. They quickly came to one conclusion, which was unanimous and simple......Give Samus Aran the order to exterminate the Metroids!