The Super Mario Galaxy movie is reported to have a credits scene with a significant reveal, as well as numerous cameos from other Mario and Smash Bros. characters. Some outlets suggest the movie's ending may set up a potential Super Smash Bros. film, while others discuss the presence of easter eggs and cameos throughout the movie. The details of the movie's plot and ending are not entirely clear, with some outlets hinting at a major twist and a potential spoiler related to a famous villain's appearance.