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 the archenemy of Samus Aran, an intelligent and sadistic dragon-like extraterrestrial that despite being killed multiple times by her, is always revived by the Space Pirates (or accidentally by the Galactic Federation in "") using cloning or robotics. Other than Samus and the titular Metroids, Ridley is the only character that has appeared consistently throughout most of the games in the series (the exceptions being "" for the Game Boy, "" for the GameCube, "Metroid Prime Hunters" for the Nintendo DS, and "" for the Nintendo 3DS). He is directly responsible for the invasion of Samus' home planet, and the death of her parents, and is the franchise's primary villain, despite not typically acting as the main antagonist in an individual game.