Gunstar Blue is a character from the popular video game series Gunstar Heroes, developed by Treasure. She is known for her vibrant blue hair and her energetic personality. As one of the main protagonists, Gunstar Blue fights alongside her brother, Gunstar Red, to save their world from evil forces. In the game, players can choose to control Gunstar Blue, who specializes in a unique combination of weapons and abilities. Her agility and combat skills make her a formidable opponent against various enemies. The game's colorful graphics and fast-paced action have made it a beloved classic among fans of retro gaming.