Mario and Pauline are happening a visit to observe Donkey Kong, however when they reach his home MIPS informs all of them that the Kongs were actually abducted by a huge turtle monster (Bowser), and that's up to Mario to save them. To locate Bowser, Mario should accumulate all 50 stars, the first 49 are actually used to unlock Hideout Controls, which is actually the home of the 50th. After collecting every star, the door on K.