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.
Irredeemable
The Plutonian, a powerful being once thought to be the world's greatest superhero, has now become its greatest supervillain. He has destroyed Sky City – the metropolis he once protected – and murdered millions of people across the globe. The series starts with the Plutonian killing his former ally, the Hornet, and his entire family. The remaining superheroes, the Paradigm – Bette Noir, Scylla, Cary, Volt, Qubit, Gil, and Kaidan – search for the reason behind Plutonian's change by speaking to his former sidekick Samsara, whom Plutonian lobotomized. Former enemies of Plutonian attempt to work with him but immediately betray him when he offers a way to earn his trust, resulting in a self-destruct of the facility in which they are meeting. The resulting explosion kills Scylla and injures Cary, superhero brothers who are observing the villains. The United Nations offer Plutonian their subservience, hoping to avoid his wrath. The Plutonian takes offense when, after speaking to the Singaporean representative, he realizes that the decision is made out of fear. In response, Plutonian sinks Singapore into the ocean. Meanwhile, Qubit searches for Modeus, the Plutonian's nemesis, using multiple robots designed to look and think like the villain.