- The name "Chacu Challhua" may come from "Chuku Challwa", which is Quechua for anchoveta, a type of Peruvian fish.
- This is the first "Earthbound Immortal" to have two "personal" effects, (other than the ability to attack directly and not be attacked.)
- This card's design is design is based on the Orca geoglyph.
- This card is based off of an orca, and yet it is also a Fish-type. An orca is actually a mammal.
- In the anime, this card had 1600 DEF instead of 2400.
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