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.
Megamind
Ever since they arrived on Earth as infants, supervillain Megamind has fought superhero Metro Man for dominance of Metro City. In his latest plan, Megamind and his sidekick Minion kidnap reporter Roxanne Ritchi and hold her hostage in a copper-lined observatory. When Metro Man arrives to save her, he reveals he is weak to copper, and Megamind obliterates him with a death ray. Megamind finally takes control of the city, but his celebration is short-lived as without Metro Man to challenge him, he finds his life is meaningless.