Erul Tron is a prominent character in the 'Otomedius' video game series, which is a spin-off of the popular 'Gradius' shoot-'em-up franchise. Styled with a futuristic and somewhat magical girl aesthetic, Erul Tron is one of the selectable heroines, piloting her own unique ship inspired by the classic Gradius series. She is known for her vibrant personality, distinctive blue hair, and her advanced weapon systems. Erul serves as both a formidable fighter and a central protagonist in the Otomedius universe.