The adorable frog-alligator-platypus tetranodon is a mix of a kappa, a water dwelling yokai, and a sumo wrestler. It even eats cucumber-like slugs (on the monster hunter twitter), much like the kappa. :
Kappa - The Kappapedia: cucumbers
The origin and evolution of Kappa in Japanese culture
Kappa, a Japanese Mythological Water Monster | YABAI - The Modern, Vibrant Face of Japan
Kappa Yokai Monster with Cucumber" Sticker for Sale by CorissaBees | Redbubble
Kappa Dangling Cucumber Yokai Pin Japanese Folklore - Etsy
Celebrate National Cucumber Day by learning about the cucumber-loving yokai, the kappa | SoraNews24 -Japan News-
We visit Kaiyodo Kappa Museum: dedicated to a yokai that loves cucumbers and human souls | SoraNews24 -Japan News-
What is Kappa? Let's Meet Japan's Favourite Yokai!
Kappa - The Kappapedia: cucumbers
Kappa – Yokai.com
A-Yokai-A-Day: Kappa | Matthew Meyer
Kappa - The Kappapedia: cucumbers
Japanese Kappa: The Yokai That Loves Butts
TIL that there is a type of water demon in Japanese folklore called a Kappa that bears a striking resemblance to someone we met recently… : r/AnimalCrossing
Kappa Yokai Monster with Cucumber" Sticker for Sale by CorissaBees | Redbubble
Japanese Kappa: The Yokai That Loves Butts
Kappa (folklore) - Wikipedia
New kappa concept available to tattoo @stevestontattoocompany - - - #kappa # yokai #pickle #cucumber #japanese #japanesetattoo #asian… | Instagram
A Creature That Loves Cucumber As Much As Human Anuses - Yokai Toons
Japanese Kappa: The Yokai That Loves Butts
