Ridley (Metroid)
One of Adam's final missions to Samus is to finish off Ridley, whom Adam fears might be more dangerous than the Metroids if left unchecked, and claims Samus is the only one capable of stopping him. However, Samus later discovers his corpse after he is killed, having had his energy drained by the Queen Metroid on the Bottle Ship. His mummified corpse turns up again in "Metroid Fusion" on the BSL station, after having apparently been removed from the Bottle Ship by the Galactic Federation and placed in a sub-zero storage room for further research (potentially into further bioweapon applications). It is later infected by an X Parasite, allowing it to gain the ability to transform into Ridley's likeness, known as . Samus later defeats the Ridley mimic and absorbs its Core-X, regaining her signature Screw Attack. What was left of the cloned Ridley's remains were destroyed along with the X when the BSL station crashed into SR388.
Characters in the Metroid series
is a recurring game boss and a major antagonist in the series. The Chozo created it as a councilor, and as a means to "accelerate their plan to link the galaxy into one unified society." During the Space Pirate invasion of Zebes, it saw the Space Pirates as a "perfect force capable of restoring true order to the universe," and successfully established itself as one of their leaders. At the same time, Mother Brain attempted to persuade Samus to be an ally in order to "build a new age for the universe" by claiming that because it built the power suit that Samus wears, she is indebted to Mother Brain. Mother Brain is depicted as a very large brain with cybernetic spikes and a single eye; usually contained in a glass tube which Samus must break to attack it. In "Super Metroid", Mother Brain also rises from the floor with a grotesque body after her tank is destroyed. Samus seemingly destroys Mother Brain in the original "Metroid", but again confronts it in "Super Metroid"; in this game, Samus is defeated and almost killed, but the baby Metroid intervenes, and Samus once again defeats Mother Brain. It was revealed in "Metroid Prime 3" that the Galactic Federation had constructed biomechanical supercomputers called Auroras, and that there were plans for a "Future Aurora Complex", which appears to be the Mother Brain depicted in "Super Metroid". In the first cutscene for "Metroid: Other M", the scene of Mother Brain destroying the baby Metroid is reenacted in an FMV cutscene, and one of the antagonists, MB, is an android housing an AI based on Mother Brain.