Ridley is a high-ranking member of the Space Pirates and serves as the archenemy to Samus Aran. He is known by the identifier Geoform 187 and the main antagonist of the Metroid series. In spite of his bestial appearance and fearsome mannerisms, he is by no means a mindless animal, but a high-ranking Space Pirate general that is sapient and, as shown in the comics, capable of speech.
Ridley is directly connected to Samus Aran's past and present. In the Metroid e-manga, he gained enough favor with the Space Pirates that he became one of their figures of highest authority. As such, he attacked and devastated three-year-old Samus's homeworld of K-2L in a raid for fuel and resources, and personally killed Samus's mother when she jumped in to protect her daughter. Unwittingly, he created his own worst enemy in Samus through this.
Super Smash Bros.
Ridley is one of the many playable characters in Super Smash Bros. Ultimate. He is a unlockable newcomer in this game. His inclusion as a playable fighter was largely cemented by popular demand both within the previous installment’s Fighter Ballot and long afterwards, particularly in the West.
Prior to his playable appearance in Ultimate, Ridley appears on Planet Zebes, flying in the background in Super Smash Bros., in the opening movie of Super Smash Bros. Melee, a boss in the Subspace Emissary in Super Smash Bros. Brawl, and a stage boss in the Super Smash Bros. for Wii U.
Super Smash Bros. for Nintendo 3DS marks Ridley's first complete absence from a Super Smash Bros. title.
- Ridley's tail is the only invulnerable part of Ridley's body in every Metroid game in the series following the first. However, in Super Smash Bros. for Wii U, his tail counts as part of his hurtboxes.
- Ridley is currently the tallest playable character to date, overtaking his nemesis Samus Aran in Smash 64, and Bowser since Melee.
- Ridley is the only playable Metroid character to not be a variation of Samus (as well as the only one not to have Samus in his name), be male, and not have a grab aerial in any game.