Yu-Gi-Oh! Duel Monsters: Season 1, Episode 194

1 - 194: Kaiba Intrudes! The Grand Prix Final

It’s Sieg vs. Leon for the right to challenge Yugi in the KC Grand Championship Finals... but Kaiba stops the duel! Why would Kaiba interfere in his own tournament? The answers may lie in the very origins of KaibaCorp and the invention of the Duel Disk!