@Jingzenshy096 I know that Hatsune Miku(BF's semi-canon sister) is not mentioned in mmv2, but what would happen after the events of Mario's Madness, Hatsune Miku finds the cartridge and taken by Horror Mario as she meets Horror Mario as Horror Mario noticed that Hatsune Miku is BF's sister, How would GB meet Hatsune Miku?, after all, He is canonically considering himself as fan of Hatsune Miku.
How would GB finding out that Hatsune Miku is BF's sister due to himself had a encounter with BF and tries to kill BF?