Changes
→Battle City
Nagumo makes a brief appearance during the [[Battle City]] of the manga and the second series anime. After defeating a duelist, he is unhappy with the card he's won through the [[Ante Duel|ante rule]] and demands that the loser give something of equal value to his card, "[[Hyozanryu]]" or else ¥100,000 (about $900 US at the time). (In the anime, he demands the two rarest cards in the duelist's Deck.)
However, [[Mokuba Kaiba|Mokuba]] appears and calls a foul. Koji insults Mokuba (calling him "Junior" in the anime), but then [[Seto Kaiba]] appears and tells Koji off, saying that when he speaks rudely to Mokuba, he dishonors Kaiba and the Battle City tournament. In the manga, Seto tears up the "Hyozanryu" card, saying Koji was going to lose it anyway. He challenges him to a Duel, anteing a briefcase of rare cards and "[[Obelisk the Tormentor (original)|Obelisk the Tormentor]]". He allows Koji to use the cards from the briefcase in the Duel, to compensate for "Hyozanryu", but says he will take them after he beats Koji. Kaiba easily defeats Koji with "Obelisk" and takes his [[Locator Card]]s. Koji is left traumatized by Obelisk's overwhelming power, and ended up screaming in terror as he relived the image of the God crushing him.
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