The Kappa – An intriguing Japanese Monster - Japanese Tales
The origin and evolution of Kappa in Japanese culture
Kappa Imp, Sprite -- Photo Tour of the Kappa in Japanese Art
Kappa (folklore) - Wikipedia
Kappa”: The Terror of Japan's Rivers | Nippon.com
How to find Kappa in Vampire Survivors' Legacy of The Moonspell DLC
Street Fighter on Twitter: "Kappa are amphibious yōkai found in Japanese folklore. They're about the size of a human child and love sumo wrestling, hence why E. Honda has chosen a kappa