Samus Aran (サムス・アラン (Samusu Aran), is the main character and protagonist of the Metroid series. Ridley is her arch nemesis.
Orphaned during a Space Pirate raid on her home of K-2L, Samus was adopted by the mysterious Chozo and taken to Zebes where she was infused with their DNA and raised to become a warrior. Once she reached adulthood, Samus joined the Federation Police where she served under the Commanding Officer Adam Malkovich, but she ultimately left to become a bounty hunter, though she was nonetheless recruited by the Galactic Federation on many occasions. Armed in her cybernetic Power Suit, Samus has become famous for her accomplishments on missions others thought impossible. Her most renowned achievements are the destruction of the Space Pirate base on Zebes, her role in ending the Galactic Phazon crisis, her extermination of the Metroid species, and her disobedience of orders at the BSL station where she chose to destroy the deadly X Parasites rather than turn them over to the Galactic Federation.
Samus appears fighting Ridley. Samus sees the heroes, and moves her hand to tell them to leave. Eventually, Ridley takes the upper hand, and suddenly, Ridley is blown away to a wall. Arceus had used judgement on Ridley. Arceus and Ridley start to fight, and Arceus blows him towards a Portal. Samus thanks the Heroes and Arceus and joins.