Yugi and the gang have saved the world from Dartz and his Grand Dragon Leviathan, but they're about to face their biggest challenge yet.

Yugi is trapped inside the Duel Dome, and the only way to escape is by defeating the Duel Computer, programmed with the skills of the world's top duelists. Since the Duel Computer has access to thousands of cards, how can Yugi win?

It's the start of the KC Grand Championship! Sixteen of the world's greatest duelists vie for a chance to challenge Yugi as the King of Games!

How does Apdnarg Otum know all of Joey's strategies? How can Joey stop Apdnarg when he gathers his ancient cards to unleash the fiercest monster from the great past? But the biggest mystery... how can Joey not know who Apdnarg Otum is?

It's the second match of the KC Grand Championship as Rebecca faces the kung-fu kicking Asia champion Vivian Wong. However, there's more at stake than just winning the duel - Yugi's heart is on the line, whether he likes it or not.

The first round is over, leaving eight duelists to compete for the right to face Yugi for the KC Grand Championship. Unfortunately for Joey, his next opponent is Zigfried Lloyd, who defeated both Weevil and Rex Raptor in one turn.

Zigfried activates Ride of the Valkyries, the same card that defeated both Weevil and Rex Raptor at the same time.

In the semifinals of the KC Grand Championship, it's a duel between child prodigies as Rebecca faces Leon Wilson and his fairy tale faction.

Yugi finds Grandpa's kidnapper, but is it really a kidnapping? While Yugi unravels the truth, Rebecca starts to unravel when her dragons fall prey to Leon's fervent fables. Rebecca must think of a new plan quickly or there will be no happy ending.

It's Zigfried vs. Leon for the right to challenge Yugi in the KC Grand Championship Finals... but Kaiba stops the duel!

It's a battle between Zigfried and Kaiba. Zigfried quickly gains the advantage by destroying Kaiba's monsters before he can even draw them!

It's Yugi vs. Leon for the title of King of Games at the KC Grand Championship! Something sinister lurks in the shadows, for this duel is more than just getting the crown. Zigfried's greatest revenge will commence as his real plan is unleashed.

Leon is Zigfried's younger brother, and he'll avenge his family's loss. Leon's fairy tales are giving Yugi nightmares but the worst is yet to come as Leon has Zigfried's mysterious and special card.

Golden Castle of Stromberg is infecting the world's Duel Disks with a virus that will destroy KaibaCorp. If Yugi doesn't destroy the card, the virus program can't be stopped.

What starts out as a typical day at Domino High School turns out to be anything but typical. The gang sets off on an exotic trip to India, but when their plane crashes in a deserted forest, their relaxing vacation turns into a dangerous game of survival!

Realizing that they've become part of a real-life version of the Capsule Monsters board game, the gang struggles to find a way out.

Reunited at last, Yugi and his friends rejoice. But their celebration is soon interrupted by a pack of man-eating wolves, a giant turtle and an angry Genie!

Grandpa translates an ancient stone tablet which directs the gang to locate the "Fortress of Fear." Now they have until sunset to find this mysterious structure or they'll be trapped in the world of Capsule Monsters forever.

Yugi and his friends discover that in order to return home to the real world they must pass a series of tests: the Five Sacred Trials. The first of which pits them against enormous sand worms and a mysterious voice that travels with the desert wind.

After narrowly escaping their battle in the desert, the gang finds themselves stranded on a mysterious floating island, where they face a monster that derives its strength from the sun.

It's on to level three as Yugi and his friends are transported to a lava-covered wasteland. To make matters worse, Joey is possessed by an evil force, and destroying it may mean destroying Joey as well.

Yugi and his friends are faced with an impossible task: locating a magical apple in a forest full of apple trees.

The gang stumbles upon a small kingdom dominated by a clan of fierce dragons known as The Fiendish Five. If they fail to slay these beasts, one of Yugi's friends must give up his soul!

Yugi and his friends defeat the Fiendish Five…or so they think. These ferocious dragons have merged together and are now more powerful than ever!