Kaiba organised the Battle City tournament. At the Clock Tower Square, he welcomed its participants and went over the rules, before declaring that the tournament would start at 9:00 am.
At some point, Kaiba defeated a generic Duelist, who then decided to take a break from Dueling and went to the arcade in the building. The opponent was impressed by Kaiba's skill and felt he should consider the Duel a cherished memory.
Kaiba defeated a generic Duelist at the bridge underpass and was unimpressed with their skill. He then spotted the player and asked him to tell Yugi Muto that he would accept his challenge any time and there was no need to wait until the tournament finals.
Yugi asked Kaiba to help locate Joey Wheeler, who had been kidnapped by the Ghouls, since Kaiba could locate all tournament Duelists using the transponder in their Duel Disks. Kaiba did not care to help Joey, but strongly disliked the Ghouls and hoped to sanction them, so he ran the scan and located Joey at Area F, Sector 5362, which was the vicinity of the pier.
Ishizu Ishtar was willing to entrust "Obelisk the Tormentor" to a worthy Duelist, who would stop Marik Ishtar. She considered both Kaiba and the player and arranged for them to meet at the art museum, where they Dueled for the card. Although Kaiba lost, he remained confident he could still win the tournament.
Kaiba qualified for the final rounds of Battle City and met up with the other quarterfinalists at the stadium site, where they boarded the airship for the next stage of the tournament.
Kaiba felt that the player was destined to lose to him. Before the player's quarterfinal with Odion, who was posing as Marik, Kaiba instructed the player to crawl his way to him.
The following card can be won from Kaiba by the ante rule, provided the player does not wager a low-level ante card. The chance of winning a card is indicated by the "%" (chance out of 100) and "2048th" (chance out of 2048) columns.