Rocketta "Rocket Slug" Slugster-Meltissimo is 11 years old. She is the youngest child in the Slugster side of her family, and since her family is divorced, she spends a lot of time with her younger brother, Phineas34720. She enjoys building wild contraptions in her backyard with Phineas, while Phineas is the constructive type, Rocket is the brainy, yet adventurous girl.