- The name "Chacu Challhua" may come from "Chuku Challwa", which is Quechua for anchoveta, a type of Peruvian fish.
- This card is tied with "Hyper-Ancient Shark Megalodon" for the strongest Fish-Type monster at 2900 ATK each.
- This is also has the highest Level of any Fish-Type monster.
- This is the first "Earthbound Immortal" to have two unique 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 on an orca, a type of oceanic dolphin, yet it is a Fish-Type despite how orcas are actually mammals.
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