- The name "Chacu Challhua" may come from "Chuku Challwa", which is Quechua for anchoveta, a type of Peruvian fish.
- This is also the only Dark Fish-Type monster.
- This is also has the highest Level of any Fish-Type monster.
- 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.
- This card's last two effects may reference to Greiger when he destroyed some of the top of the tower where Goodwin was watching the Fortune Cup and was stopped by Yusei to prevent any further damage in Greiger's revenge.
- In the anime, its DEF is 1600 instead of 2400.
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