- The egg-like structure in the center of the card resembles the cores, specifically "Wise Core".
- Aporia is able to merge with the card, something that has only been done with monsters in the anime prior, specifically "The Winged Dragon of Ra" and "Malefic Truth Dragon".
- Aporia can also be seen in this card's artwork, merged with the fortress, he can be seen as a very small human image just below the middle circle on the top part of the artwork.
- "Fortissimo" is the Italian word for "Very Loud". Having in mind Aporia's split personality has names of singers (which are generally related to Italy), this makes sense.
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