The Dunkleosteus Jyamato (ダンクルオステウスジャマト, Dankuruosuteusu Jamato), also known as the Kodaigyo Jyamato (古代魚ジャマト, Kodaigyo Jamato, lit. "Ancient Fish Jyamato")[1], was an ancient Jyamato cultivated by Archimedel (アルキメデル, Arukimederu) during the Bullfighting Game. Archimedel was later willingly consumed by it, resulting in the Jyamato adopting his appearance, memories, and personality. Archimedel unearthed the fossilized Dunkleosteus Jyamato and used fossilized Core IDs as nutrient to revive it, com