Did a samurai walk an Armored Cat?

There's an image that's been shared on social media dozens of times over the past few years, typically without attribution. The image depicts a shoeless samurai walking an armored cat. The samurai has a helmet with cat ears, and the image appears to be weathered and old, perhaps dating back to Medieval Japan.

What is Samurai Cat?

Samurai Cat is a puzzle game based on checkers where you control Mr. Jack, a remaining cat in a world conquered by mice. Use cheese to lure the mice to vantage positions and help Mr. Jack eliminate them all with just one movement. Is this game relevant to you? WEEK LONG DEAL! Offer ends in 19:06:08 Buy CATS, GRIDS & PUZZLES BUNDLE (?)

Did Genghis Khan paint a samurai with cat ears?

The samurai has a helmet with cat ears, and the image appears to be weathered and old, perhaps dating back to Medieval Japan. There are a variety of explanations of what's being depicted: My most favorite painting of Mongolian conqueror Genghis Khan pic.twitter.com/r2aY26LKTL — Gautam Trivedi (@KaptanHindustan) June 4, 2018