Roll is a kind-hearted humanoid robot created by Dr. Light to be a housekeeper, helping around Dr. Light's Laboratory by cleaning and cooking. Roll is like a younger sister to Mega Man. Her dream is to one day open a hospital to help people in need. Roll is shown to be sweet, kind, and optimistic. She is a caring individual with a big heart. She doesn't fight Robot Masters as much as her brothers, but she does if she has the chance. She is supportive and compassionate, especially to Mega Man.