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.
List of Superman enemies
This is a list of fictional supervillains appearing in DC Comics who are or have been enemies of the superhero Superman. Several of Superman's rogues (most notably Darkseid and Brainiac) are or have been foes of the Justice League of America as well. Unlike most heroes, Superman's adversaries exist in every known capacity; humans, metahumans, androids, sorcerers, empowered animals, other aliens (such as Kryptonians), mythical/supernatural creatures, and even deities.