Ragnarok, Sasaki is one of the thirteen fighters chosen to represent humanity in the Ragnarok tournament. Known as "History's Greatest Loser", he faces against the Greek god Poseidon in the third round of the tournament. An ōdachi named the "Washing Pole" is a weapon attainable by the player in the 2011 action RPG Dark Souls and its sequels Dark Souls II and Dark Souls III. In the anime and manga One Piece, Sasaki is one of the 6 members of Kaido's Tobiroppo. In the anime and manga "Hajime no Ippo", a reference to Kojiro is made, and his sword movements are repurposed as boxing punches.The first time seen in a fight against the protagonist "Ippo Makanauchi" the user of the "flight of the swallow" is "Kazuki Sanada". See also Sasaki Kojirō in fiction Miyamoto Musashi in fiction References Sources Miyamoto Musashi: His Life and Writings, Kenji Tokitsu (trans. Sherab Chodzin Kohn), Shambhala Press, 2004. Miyamoto Musashi, Eiji Yoshikawa (translated as Musashi'' by Charles S. Terry ) Further reading 1580s births 1612 deaths Samurai Japanese swordfighters Japanese warriors killed in battle People from Fukui Prefecture Bushido Japanese duelists People whose existence is disputed