Card Trivia:Psychic Kappa
- This monster appears in the artwork of "Big Wave Small Wave".
- This monster is based on a kappa, a water sprite in Japanese folklore who is often depicted as a green humanoid with turtle-like features, webbed extremities, and a dish on top of its head.
- This monster has a recolored counterpart: "Hyosube"
- This monster has a retrained Xyz Monster counterpart: "Armored Kappa".