Spoiler warning: I, Dimentio, planned my death. I prepared the final battle so that it ended the exact moment that the worlds ended. I didn't put up much of a fight so that the timing was right. Did you notice that Luigi didn't exactly offer anything to the chaos heart? It's because there was different reason I planted the floro-sapien seeds in his mind. He has ties with Professer E. Gadd, who has some questionable contraptions that could bring me back to life even more powerful than before! Perhaps you've noticed that Fawful is missing, Bowser and Peach got married again, and Rosalina has been staying close to Earth? Once I came back to life, I hired Fawful to rebuild the Dark Star from it's shattered fragments, Manipulated Bowser into thinking he should marry Peach again, and stole the star rod from Rosalina, whom the star spirits had given it to for extra protection. I then moved the comet observatory out of the way so that I could have room to build my perfect world! Would anybody like to join me when doomsday is put into action?