Textual description of this diagram
There are 3 sets: Secret Bosses, Shadow Crystal Bosses, and THE WORLD REVOLVING leitmotif. Jevil, Spamton, and Hammer of Justice are in all 3 sets. Shadow Mantle is only in Secret Bosses. The Knight is only in Shadow Crystal Bosses. Mike is at the intersection of Secret Bosses and THE WORLD REVOLVING leitmotif.