Red-Eyes Black Dragon (character)

The Red-Eyes Black Dragon is Katsuya Jonouchi's( or Joey Wheeler in English) spirit partner in Yu-Gi-Oh! Duelist. He lost it to a Rare Hunter when he was dueling against Exodia, but Yami Yugi got it back for him. He made Yugi promise not to give it back until they could duel fairly in the finals of Battle City. He ended up losing to the dark side of Marik Ishtar, but Yugi, using the Red-Eyes in his final duel against Kaiba, woke Jonouchi up. At the end of the final volume of Battle City, Jonouchi is shown dueling Yugi, which probably means Jonouchi won back his Red-Eyes even if he lost.