As an anthology series, every Final Fantasy game can be played out of order, not counting direct continuations (such as Final Fantasy 10-2, the series' first sequel, or Final Fantasy 7 Rebirth, the second in the Remake trilogy). But while each game shares common themes and imagery, such as chocobos, darkness against light, or powerful crystals, the occasional tantalizing hints of an interconnected multiverse are made in the most easily overlooked of places.