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.
Metroid
"Metroid" was designed to be a shooting game that combined the platform jumping of "Super Mario Bros." with the non-linear exploration of "The Legend of Zelda" and a distinctly darker aesthetic. The name of the game is a portmanteau of the words "metro" (as in rapid transit) and android, and was meant to allude to the mainly underground setting of the first game as well as its robot-like protagonist. Halfway through development of the original "Metroid", one of the staff said to his fellow developers "Hey, wouldn't that be kind of cool if it turned out that this person inside the suit was a woman?", and the idea was accepted. Ridley Scott's 1979 science-fiction horror film "Alien" was described by Sakamoto as a "huge influence" after the world of the first "Metroid" had been created. The development staff was affected by the work of the film's creature designer H. R. Giger, and found his creations to be fitting for the "Metroid" universe. In recognition of this, a character was given the name Ridley, after director Scott.