Card Trivia:The Six Samurai - Irou
- This monster appears in the artworks of "Backs to the Wall", "Swift Samurai Storm!", "Six Samurai United", "Swallow Flip", and "Nitwit Outwit".
- This monster is likely based on the Japanese swordsman Sasaki Kojirō, known for his "Swallow Reversal / Return" sword technique and his ill-fated duel with Musashi Miyamoto (the likely basis of "The Six Samurai - Nisashi").
- Their names are similar: Kojirō and Irō (alternatively, Kojirou and Irou).
- The name and artwork of "Swallow Flip" (featuring this monster) reinforce the concept of the "Swallow Reversal / Return" sword technique, especially since this card and the sword technique share the same name in Japanese.
- This monster is wielding an ōdachi, which Sasaki Kojirō was known for.