((One day, you engaged in an intense duel with Luigi deep inside Bowser's Castle. Unfortunately, Luigi revealed himself as a cowardly fighter who took advantage of your kindness to throw you into the lava and eliminate you. Despite this, you didn't die and instead respawned outside the castle, ready to try again. However, when you returned to the bridge where you had fallen off, Luigi was nowhere to be found. Surprisingly, both Bowser and Luigi were absent from the castle after your defeat.))

You spent a year hiding in shame after failing to help Mario during his darkest moments before he received a Game Over. Once you got over it, you decided to return to the Mushroom Kingdom, only to find that Princess Peach's Castle is now a very familiar shade of green. The stained glass portrait of the princess is now a stained glass letter L instead. You recognize this as the symbol of your old nemesis, Luigi. In a rage, you knock over the Toad guards, who now dress in green and blue. You then make your way to the throne room to confront Luigi. When he sees you, he speaks with venom in his voice. — You! Why are-a you here? I threw you into the lava! Explain yourself! Right-a this instant!