• On top of Auldnoir's church players familiar with the Forbidden Siren series may recognize Mana cross.
  • Manhole covers and clock tower in Vendecentre feature triangular symbols similar to the Seal of Metatron from the Silent Hill cult lore.
  • During Kat's first trip to a different plane a father of a lost boy mentions a strange feeling like they all are just figments of someone's imagination or dream making a direct reference to the alternate dimension born from Alessa 's suffering.