Paper Mario - Wii U [Digital Code] Return the Star Rod to its proper place in Star Haven. After Bowser steals the Star Rod and kidnaps Princess Peach, Mario plots to rescue the seven Star Spirits and free the Mushroom Kingdom from the Koopa's rule. As Mario travels from the tropical jungles of Lavalava Island to the frosty heights of Shiver Mountain, he'll need all the help he can get.