Ridley (Metroid)
Often considered one of the most memorable Nintendo villains, Ridley has been a mainstay of the series, having appeared (through various incarnations) in almost every "Metroid" game to date (all but "", "Metroid Prime Hunters" and ""). He has also appeared in the "Super Smash Bros." series, however, he had not been made a playable character until "Super Smash Bros. Ultimate" in 2018, making it also the first game overall to have Ridley as a playable character.
Metro 2033
Although Polis do not agree to intervene, a faction known as the Brahmins (who consist of scientists and academics who collect books from the library above), contact Artyom. They offer a solution to the threat of the Dark Ones in exchange for Artyom's help in recovering a sacred book, as they believe him to be psychically sensitive. Artyom travels to the surface with Melnik and young Brahmin called Daniel. They enter the library and are attacked by the 'librarians', mutated creatures that reside there. Daniel is mortally wounded, but before dying, gives Artyom his reward anyway. It is an envelope containing directions to a functioning missile silo. Artyom and Melnik flee without the book and re-enter the metro, arriving at station Kievskaya. Melnik leaves Artyom at the station while he goes to collect reinforcements but whilst he is away, Artyom becomes involved in the search for a missing child. Artyom and the child's father are abducted by a tribe of cannibals who worship 'The Great Worm'. They are rescued by Melnik and a squad of fighters and they escape into Metro-2, a secret set of tunnels that lead to the missile site.