Samus Aran is a bounty hunter that has worked with the Galactic Federation several times in the past, having exterminated the Metroids, Space Pirates, Ridley, Mother Brain, Metroid Prime/Dark Samus, Phazon, the Ing, Gorea, the Galactic Federation Bioweapons Program (Special-forces unit) MB and X Parasites, along with terminating numerous hostile life-forms on various planets. Below is a full account of her history.