Ridley, also known by his aliases Geoform 187 and The Cunning God of Death, is a villain from the Metroid series, and is the series' primary villain despite not typically acting as the main antagonist in individual games he appears in. He is a draconic extraterrestrial that acts as Samus Aran's archenemy, due to his attack on her homeworld and subsequent killing of her parents; despite being killed multiple times by her, he is always revived by the Space Pirates continuously feeding him Bio-Matter. Originally appearing as a subordinate of Mother Brain, the primary antagonist of multiple titles in the Metroid series, he appears in Metroid Prime and Prime 3 by himself in his Meta Ridley ... more on Wikipedia