sentences:  Mario and company cross over, find the heart of the factory, and defeat Smithy, thereby stopping his army creation and causing Exor to disappear.The collected Star Pieces are used to repair the Star Road, Geno returns to the Star Road, Bowser rebuilds his castle with his newly reformed army, Mallow regains his rightful title as prince of Nimbus Land, and the game closes as Mario and Princess Toadstool return to the Mushroom Kingdom to celebrate their victory.Yoshio Hongo of Nintendo explained the game's origins