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 | Getting Married | Story of Seasons: Friends of Mineral Town
Kaiyodo Kappa Museum – Shimanto-chō, Japan - Atlas Obscura
Japanese Kappa: The Yokai That Loves Butts
Fiji the lost Kappa | Perfil
Kappa cucumber celebration | beastlyworlds
Kappa and cucumber - Stock Illustration [54173339] - PIXTA
Kappa Maki (Cucumber Roll) - Tiger-Corporation
A Creature That Loves Cucumber As Much As Human Anuses - Yokai Toons
Kappa Yokai Club Pin – Shishido Creative
Kappa | Yokaiandmonsters Wiki | Fandom
Kappa Maki Classic roll with cucumber. Hosomaki thin rolls, small rolls, with cucumber. top view on a white plate Stock Photo - Alamy
TamiArt — Kappa - a river god from Japanese mythology. They...
Kappa with cucumber - Stock Illustration [62683000] - PIXTA
Unknown: Kappa with Cucumber - Robyn Buntin of Honolulu - Ukiyo-e Search
Saki Myuuraa on Twitter: "A peaceful kappa eating his favorite food ( cucumber) :3 IG: @saki_myuuraa https://t.co/xtZwSeAY10" / Twitter
Kappa loves cucumber by Kimbot1984 on DeviantArt
Read Cucumber Defense :: Cucumber Defense 04 -- What is a kappa? | Tapas Comics