Rex Raptor (World Championship)

Rex Raptor, known as Dinosaur Ryuzaki (ダイナソー竜崎 Dainasō Ryūzaki) in the Japanese releases, is a character in the Yu-Gi-Oh! Duel Monsters and World Championship video game series. This is a video game depiction of Rex Raptor, a character from the Yu-Gi-Oh! manga and anime.

Appearances
In Yu-Gi-Oh! Duel Monsters, Ryuzaki is a Level 2 opponent, unlocked by defeating all Level 1 opponents, at least five times each.

In Yu-Gi-Oh! Duel Monsters II: Dark duel Stories, Ryuzaki is a Level 2 opponent, unlocked by defeating all Level 1 opponents, at least five times each.

In ''Yu-Gi-Oh! Duel Monsters III: Tri-Holy God Advent and Yu-Gi-Oh! Dark Duel Stories'', Rex is a Level 2 opponent, unlocked by defeating all Level 1 opponents, at least five times each.

In Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist, Ryuzaki is a Level 1 opponent, available from the start.

In Yu-Gi-Oh! Duel Monsters 5 EX 1 and Yu-Gi-Oh! The Eternal Duelist Soul, Rex is a Level 2 opponent, unlocked by defeating all Level 1 opponents, at least twice each.

In Yu-Gi-Oh! Duel Monsters 6 EX 2, ''Yu-Gi-Oh! Duel Monster International and Yu-Gi-Oh! Worldwide Edition: Stairway to the Destined Duel'', Rex is an opponent available from the start.

In ''Yu-Gi-Oh! Duel Monsters 7: The Duelcity Legend and Yu-Gi-Oh! The Sacred Cards'',

In ''Yu-Gi-Oh! Duel Monsters 8: Reshef of Destruction and Yu-Gi-Oh! Reshef of Destruction'',

In ''Yu-Gi-Oh! Duel Monsters EX 3 and Yu-Gi-Oh! World Championship Tournament 2004'', Rex is a Lever 2 opponent. He is unlocked by defeating all Level 1 opponents, at least three times each by having at least half the cards from the Blue-Eyes White Dragon Booster Pack.

In ''Yu-Gi-Oh! Duel Monsters International 2 and Yu-Gi-Oh! 7 Trials to Glory: World Championship Tournament 2005'', Rex can be unlocked by winning the Weekend Tournament, a certain number of times. The player can Duel him at the hometown on Mondays and Saturdays, the Coliseum on Tuesdays and Thursdays, near the shopping district on Wednesdays and the K.C. Tower on Fridays and Sundays. He also faces the player in the K.C. Tower Tournament and is a potential round two opponent in the Sugoroku Tournament.