3D Printable Kappa - Endless: Fantasy Tactics by Isekai Heavy Industries
Kappa – d20PFSRD
Kappa (5e Creature) - D&D Wiki
In The Company of Kappa: A 1st-20th level Player Character Racial Class (PFRPG) - Rite Publishing | Pathfinder | Kaidan | In the Company of | DriveThruRPG.com
ArtStation - Kawamatsu the Kappa | Resources
Kappa Tech-Wrecker (Showcase Ninja) [Kamigawa: Neon Dynasty] – Gopher Games