Super Mario Galaxy — During the star festival taking place in the Mushroom Kingdom, Bowser invades the festival along with his air fleet. With the help of a huge flying saucer, he kidnaps Princess Peach along with her palace. After failing to thwart Bowser's plans, Mario finds himself stranded on a small, distant planet, where he meets Princess Rosalina and her companion Luma. Rosalina is the owner of a mobile space observatory, using which she travels around the universe. However, the power of the stars, which served as the observatory's energy source, was stolen by Bowser. To restore the station's capabilities, Mario embarks on a journey across galaxies in search of missing stars. After collecting them, using the observatory, Mario travels to the center of the universe to rescue Princess Peach.