Aki Light is a normal robot schoolboy who lives in the futuristic world of Silicon City. Silicon City is co-inhabited by humans and robots alike. When the villainous Sargeant Night and his team of Robot Masters emerge to threaten the city's citizens, Light transforms into the powerful hero known as Mega Man. Mega Man is equipped with the arm cannon Mega Buster and the ability to copy the powers of his opponents. He is aided by Mega Mini, his pet robot dog, Rush, and his human sister, Suna Light, to take down villains and save the city from those wishing to do it harm.