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.
Heros: The Sanguine Seven
The villains include Hot Head, the first and weakest; Robo Robber, one of the more difficult supervillains as the robotic sphere moves at blinding speeds and is completely airborne; The Count, which uses bats to attack; The Green Thumb, a tiny, hardworking elf-like creature; and The Wild Hare, mastermind of the super villains, and the last enemy of the game.