Dinosaur Ryuzaki and Insector Haga's Duel (manga) - Yugipedia - Yu-Gi-Oh! wiki

Dinosaur Ryuzaki and Insector Haga faced each other in the final Duel of the the Japanese National Duel Monsters Championship in the Yu-Gi-Oh! manga.

Joey Wheeler, Yu-Gi-Oh! Wiki

Roses are Red~ — Every moment of screentime Haga and Ryuzaki/Rex

Bakura Ryou, Yu-Gi-Oh! Wiki

Insector Haga (manga) - Yugipedia - Yu-Gi-Oh! wiki

Yami Bakura, Yu-Gi-Oh! Wiki

Yu-Gi-Oh! Duel Monsters (season 4) - Wikipedia

Alister, Yu-Gi-Oh! Wiki

Yu-Gi-Oh! - Duel 064 - Yugipedia - Yu-Gi-Oh! wiki

Mokuba Kaiba, Yu-Gi-Oh! Wiki

Card shop manager (manga) - Yugipedia - Yu-Gi-Oh! wiki

Koji Nagumo (manga) - Yugipedia - Yu-Gi-Oh! wiki

Duke Devlin, Yu-Gi-Oh! Wiki

Kisara (manga) - Yugipedia - Yu-Gi-Oh! wiki