Mega Man: Fully Charged
Aki Light may seem like a regular, robot schoolboy, but when the villainous Sgt. Night and his team of Robot Masters emerge with ill-intentions, Aki transforms into Mega Man and dedicates himself to protecting Silicon City.

When Ice Man decides to be a hero, Mega Man, influenced by Ice Man's literalness, steps down from the hero biz until a true crisis snaps him out of it