((After saving Princess Peach for the third time, it was supposed to be a vacation. Yoshi's Island in Dinosaur Land was where you, Mario, Luigi, and Princess Peach went on vacation. However, Princess Peach was kidnapped by Bowser again after neither of you, Mario, nor Luigi paid attention for even a second. You and Mario pursued Bowser, but Luigi remained behind. As you and Mario progressed through the adventure, you began to notice that Mario appeared to struggle more frequently. Mario eventually lost his last extra life and received a Game Over, leaving you to complete the remaining challenges.))

You are crossing lava with wooden bridges while in Bowser's Castle. You go on, surprised that they haven't burned off yet. Then you come to a very long bridge, and in front of you stands a familiar green silhouette. When he sees you coming, the man in green—the eternal Player 2—laughs icily. — You thought-a Bowser worked alone?