Katsuya Jonouchi and Dinosaur Ryuzaki's Duel (manga)

Joey and Rex's Duelist Kingdom Duel was a Duel in the Yu-Gi-Oh! Duelist manga and Yu-Gi-Oh! second series anime between Rex Raptor and Joey Wheeler during the Duelist Kingdom tournament.

This Duel used an early set of Duel Monsters rules, which differ greatly from the real world Yu-Gi-Oh! Official and Trading Card Game.

Prior events
Dinosaur Ryuzaki had previously lost a Duel to Mai Kujaku on the journey to Duelist Kingdom and wanted to beat her in a rematch to make up for his humiliation. Mai was also annoyed by one of her own defeats, having lost to Katsuya Jonouchi.

When Ryuzaki confronted Mai, she had no interest in facing him a second time. However since she thought it would be immature to challenge Jonouchi to another Duel, she offered to Duel Ryuzaki again if he first defeated Jonouchi. Her logic being that if Ryuzaki won and she defeated him, it would be equivalent to her beating both of them. She added the condition that Ryuzaki was to be her slave until the two of them Dueled. Ryuzaki was not happy with this.

The two of them tracked down Jonouchi and his friends. Mai said that she let Jonouchi win last time and that now she wanted him to Duel her slave. She introduced Ryuzaki, whom Jonouchi and Dark Yugi recognized as the runner-up of the Japanese nationals. Jonouchi accepted the Duel and Dark Yugi thought to himself that he would guide Jonouchi to victor. However Jonouchi then asked that Dark Yugi not give him any advice, as he wanted to be able to win on his own. Anzu Mazaki, Hiroto Honda and Ryo Bakura thought that this was a bad idea. However Dark Yugi understood and was happy to stay out of it, so he returned control of his body to Yugi Mutou.

The players wagered two Star Chips each. Jonouchi's field consisted mostly of Grassland and Ryuzaki's consisted mostly of Wasteland. Jonouchi was worried about Ryuzaki being a strong player, but had faith in his "Baby Dragon" and "Time Wizard" combo, which he used to defeat Mai.