Samurai & Shogun (Rick and Morty)

Explained: https://www.slashfilm.com/rick-and-morty-anime-short/

During the Toonami block of programming that airs anime shows on Adult Swim, there was a whole Rick and Morty anime short inspired by Lone Wolf and Cub, the manga created by writer Kazuo Koike and artist Goseki Kojima, which has been turned into several different movies and TV adaptations, not to mention having a huge influence on the live-action Star Wars series The Mandalorian. Watch the Rick and Morty anime short below.

https://en.wikipedia.org/wiki/Lone_Wolf_and_Cub