sentences: "Paper Mario" is set in the Mushroom Kingdom as the protagonist Mario tries to rescue Princess Peach from Bowser, who has imprisoned the seven "Star Spirits", lifted her castle into the sky and has defeated his foe after stealing the Star Rod from Star Haven and making himself invincible.To save Mushroom Kingdom, rescue Peach, get the castle back, and defeat Bowser, Mario must locate the Star Spirits, who can negate the effects of the stolen Star Rod, by defeating Bowser's minions guarding the star spirits.