Seto Kaiba ( manga ) Seto Kaiba or commonly referred as Kaiba is one of the main characters in the " Yu - Gi - Oh ! " manga . This is the original depiction of Seto Kaiba , as created by Kazuki Takahashi . Kaiba is a rival of Yugi Mutou and Dark Yugi . He was first introduced as a prodigious , cold - hearted gamer who stopped at nothing to achieve his goals , even resorting to seemingly killing his opponents . He is also Mokuba ' s older brother and the current majority shareholder and CEO of his own multi - national gaming company , KaibaCorp , and aims to become the world ' s greatest player of " Duel Monsters " . Following his second Duel with Yugi , he was left in a coma , where he reconstructed his heart and emerged less evil . Since then , he retains his arrogance , but shares compassion for his younger brother , Mokuba . He is homologous to the ancient Egyptian Priest , Seto . Design . Conception . Seto Kaiba is based on a collectible card games player whom a friend of Kazuki Takahashi met . Takahashi ' s friend asked this person to teach him how to play a card game , but he replied " Hmph ! Come back when you ' ve collected 10 , 000 cards " . The story made Takahashi mad , but he then thought the player would make a good character . Takahashi had originally considered making Kaiba the heir to a gaming company and have him challenge Yugi using strange games he continuously comes up with , but on short notice , ended up having him play " Duel Monsters " a second time . He also reconstructed Kaiba to make him a semi - lead character and rival to Yugi . The name " Seto " came from the Egyptian deity , . Set is pronounced as " Seto " in Japanese . However , the comparison between Seto Kaiba and the deity Set goes beyond the name . In ancient Egyptian religion , Set shares a well - documented and violent rivalry with his relative Horus for the Kingship of Egypt . In Egyptian mythology , Horus is also known as the god of sun and protection while Set is known to be the god of war and chaos . During their conflict , while Horus is seen as a wise and a lawful god , Set is often depicted as extreme , violent and deceitful , who will stop at nothing to achieve his ends , a behavior that can be paralleled to Seto ' s . Set is also often drawn with . This scepter had the power to control the darkness and was the symbol of dominion over things and individuals . Such a scepter can be related to the Millennium Rod carried by Priest Seto . This popular Egyptian rivality and Seth ' s personality may have been a strong inspiration for Seto Kaiba ' s conception . Appearance . Seto Kaiba has brown hair , blue eyes and a slim build with broad shoulders . He often has a stern and condescending expression on his face . Standing at 1 . 86 m , Kaiba is one of the tallest of all the major characters . He initially wore the common Domino High School uniform , with his coat closed and carried his steel briefcase instead of a bag . Later , he wore a similar white uniform with some gold ornament on the collar . After his coma , Kaiba tended to wear form - fitting long coats which emphasized his height ; during Duelist Kingdom , he wore a simple blue coat ; in the lead - up to Battle Bity he wore a high - shouldered purple coat , and during the events of Battle City he wore his most iconic coat , his sleeveless white studded coat , in addition to belts strapped around his limbs . Personality . Prior to his second defeat against Yugi , Kaiba was cruel and arrogant . He went as far as pushing people into committing suicide to achieve his ends . After he woke up from his comatose state , he showed more respect to individuals , but retained his arrogance , leading Yugi and his friends to believe he had not changed . As an established gamer , inventor and CEO of KaibaCorp , he is regarded as a young genius . Before the Duelist Kingdom ' s events , Kaiba was shown to be quite severe and careless about his younger brother , Mokuba . Later , he is depicted as being more protective toward him to the point of risking his life in order to save him . Kaiba is willing to put his life or other lives on the line to achieve his goals or settle a conflict . He showed almost no fear when Dark Yugi warned him about the possibility of fatal outcome of a Shadow Game and tries to kill Yugi and his friends , during Death - T . However , when he learned that death was the price to be paid in Yugi ' s Duel with the brainwashed Jonouchi , Kaiba was sickened by the prospect , claiming that even at his worst he would not have done this and attempted to stop the Duel . Biography . Adoption and KaibaCorp takeover . At a young age , Seto and his younger brother Mokuba were orphaned . Their mother died when Mokuba was born , and their father died in an accident when Seto was about eight . Their other relatives used up their inheritance and afterward left them at an orphanage . At the orphanage , Seto promised to make life better for him and Mokuba and would advise him not to cry , saying that they should not show weakness . He taught Mokuba how to play chess and they lived to play each day . A photograph of them was taken playing chess one day . Mokuba believed that the time the picture was taken was the last time he saw Seto smile . The then - head of KaibaCorp , Gozaburo Kaiba , arrived at the orphanage to adopt an heir . Seto , who was 10 at the time , saw the chance to challenge him to a game of chess , with the stakes being that Gozaburo was to adopt Seto and Mokuba together , should Seto win . Seto won the game by cheating and Gozaburo adopted both brothers , changing their surname to " Kaiba " . Life with Gozaburo was the complete opposite of the luxury that Seto and Mokuba expected after the adoption , as Gozaburo forced Seto into a rigorously accelerated school program , forcing him to study several subjects , including economics , social studies , foreign languages , and game strategy . Gozaburo did not realize that he was not raising an heir , but a powerful enemy . Six years later , Seto managed to take control of KaibaCorp , which became finalized at a board meeting , in which the other member of the board , sided with Seto . After announcing that the company now belonged to him , Seto asked if he had learned what his father wanted . Gozaburo replied that he lost his game with Seto and told him to burn it into his brain that this is what a loser deserves , before committing suicide by jumping out a window . Kaiba accepted his message " to lose means to die " and thanked Gozaburo for teaching it to him . Experience of Death . Kaiba visited the Kame Game shop , where he met Yugi Mutou and Katsuya Jonouchi from his class . When Jonouchi learned that he played " Duel Monsters " , he offered to let him join their group playing it at school . However Kaiba ridiculed the idea of them being in his league and tossed Jonouchi ' s cards over his shoulder , calling them useless . He boasted about competing at national level and told Jonouchi to come back after collecting at least ten thousand cards . Kaiba was surprised to see Sugoroku Mutou ' s " Blue - Eyes White Dragon " card on the counter . He had previously thought he would never see a copy of that card and now thought he could be invincible if he owned it . He offered to trade all the cards in his briefcase for it , but Sugoroku refused , due to the card ' s sentimental value and told Kaiba that if he cared for every card in the briefcase , he would learn the true strength of the game . Kaiba stormed off , vowing to get the card later . The next day at school , Kaiba watched Yugi and Jonouchi Dueling and thought that the elementary school students at the national tournament were even better than Jonouchi . He learned that Yugi had brought Sugoroku ' s " Blue - Eyes White Dragon " with him , so he pretended to have learned a lesson about loving the cards from Sugoroku and asked Yugi if he could see the card . Yugi complied and Kaiba switched it with a counterfeit . Yugi noticed what he did , but did not want to mention it in front of the other students , so he confronted Kaiba after school . Kaiba tried acting innocent , but eventually got fed up with Yugi and hit him in the head with his briefcase . He confessed that he did not care about loving cards and asked Yugi to tell Sugoroku that it does not matter how you play the game , but whether you win or lose . Dark Yugi then emerged and challenged Kaiba to a Shadow Game of " Duel Monsters " . Dark Yugi informed him that the rules would be a bit different in this Duel and Kaiba was surprised to see lifelike projections of the monsters from the cards appear as the were played them . As Kaiba was about to lose , he slipped the stolen " Blue - Eyes White Dragon " from his pocket to his hand and played it . He lied that it was not Sugoroku ' s card , but one he had gotten from someone else . Remaining loyal to Sugoroku ' s soul , " Blue - Eyes White Dragon " refused to attack and betrayed Kaiba , by destroying itself . Dark Yugi defeated Kaiba after reviving the " Blue - Eyes White Dragon " with " Monster Reborn " . Dark Yugi inflicted the " Experience of Death " Penalty Game on Kaiba for losing . This caused Kaiba to fall under the illusion that he had become a " Duel Monsters " card . Inside the card , he resided in the world of Duel Monsters , where he repeatedly experienced death at the hands of other monsters . Dark Yugi hoped that by becoming a card , Kaiba would learn to understand the heart of the cards . Kaiba awoke from the illusion eventually , but continued to suffer nightmares about it . Solid Vision development . Kaiba began work on creating holographic technology to heighten the experience of playing " Duel Monsters " . He designed the Battle Box es , which were arenas that players sat inside while playing Duel Monsters and would be surrounded by projections of the monsters they Summon . Kaiba passed the Battle Box idea on to the creator of " Duel Monsters " , Maximillion J . Pegasus . Pegasus invited Kaiba as his special guest to witness his televised Duel against the Card Professor , Keith Howard . At the Duel , Pegasus simply sat in front of Keith for a few seconds , then wrote down some instructions on a piece of paper , which he gave to Tom , a beginner from the audience , to use against Keith . While Tom dueled Keith , Pegasus sat with Kaiba and accepted his proposal . Kaiba was stunned by Pegasus ' actions during the Duel . When Tom won and it was confirmed that Pegasus had written down all of Keith ' s strategies on the paper , Kaiba inferred that Pegasus must have read Keith ' s mind . Kaiba later visited the Duelist Kingdom island to attend a party celebrating the completion of the Battle Boxes . To combat Pegasus ' Mind Scan , Kaiba began making Duel Disk s . With them , " Duel Monsters " players would be able to stand further apart and avoid face - to - face contact , which he hoped would be enough to avoid having his mind read . Death - T . Prior . The four " Blue - Eyes White Dragon " cards were possessed by an American , a German , a Hong Konger , and Sugoroku Mutou of Japan . Kaiba took the cards belonging to the former three by forcing one person into bankruptcy , by making deals with the mafia and forcing one person to commit suicide . Kaiba worked on constructing a Kaiba Land theme park in Domino City and spent 10 billion yen on the Death - T park , which was set on simulating the Experience of Death , through Solid Vision , in order to get his revenge on Yugi . He hired people such as professional hitmen , torturer and a serial killer to work in stages of Death - T . Mokuba also offered to face Yugi in one of the stages . Kaiba tried talking him out of it , believing Mokuba to be no match for Yugi , but Mokuba insisted and took the role anyway in the hopes of winning Seto ' s respect . Kaiba and Mokuba bet on which stage of Death - T Yugi would die on , with Kaiba choosing the final stage , meaning he bet Mokuba would lose . Kaiba invited Yugi and Jonouchi to his mansion the night before the grand opening of the Kaiba Land and had Sugoroku Mutou kidnapped unbeknownst to them . He had planned on giving Yugi and Jonouchi a personal welcome , but fell asleep after long nonstop work . He suffered the Experience of Death nightmare that night , which he found ironic the next day as he planned on never having that dream again after Death - T . Kaiba learned that Mokuba had tried to kill his guests in his absence , but laughed it off , saying " boys will be boys " . Kaiba brought Yugi and Jonouchi to the opening as his special guests . This opening took place three days before the park was open to the public . Yugi , Jonouchi and other children Kaiba had invited were given access , free of charge . This caused Yugi and Jonouchi to think they may have misjudged Kaiba . However Kaiba was confronted by a former KaibaCorp employee , who accused him of driving his father to commit suicide . That man was quickly removed . After letting Yugi and Jonouchi use a number of rides , he took them to a special show . There he revealed he had kidnapped Sugoroku , and then faced him in a game of " Duel Monsters " in his new Battle Box simulators . Sugoroku used " Blue - Eyes White Dragon " , but lost as he was overwhelmed by the projections and Kaiba ' s three " Blue - Eyes White Dragons " . Kaiba tore up Sugoroku ' s " Blue - Eyes White Dragon " card , as Sugoroku ' s punishment for losing and the card ' s punishment for betraying him before . He also had Sugoroku subjected to an artificial Penalty Game , where he was attacked by holographic monsters . Kaiba got Yugi to swear to participate in Death - T in exchange for releasing his grandfather . Yugi accepted , but Jonouchi would not let him do it alone . Their friend Hiroto Honda , who was in the audience with his nephew Johji also accompanied them . Kaiba agreed to let them help Yugi , thinking that it just meant he would bury them all in the same grave . Kaiba allowed the other children he had invited to Kaiba Land to watch Death - T from the stalls . They believed Yugi and his friends were special guests given access to another theme park , but were unaware that its intention was to kill Yugi . Kaiba himself , monitored the events from a control room . Death T - 1 . In the first stage , Death T - 1 , Kaiba had arranged for Yugi and his friends face the hitmen , Johnny Gayle , Bob McGuire and " name unknown " in a shootout game . The objective was to eliminate enemy players by shooting a sensor on their vests . However Kaiba supplied ineffective guns for Yugi , Jonouchi and Honda , while the hitmen were given lethal guns . Before the game began , an attendant was to explain the rules to Yugi and his friends . However someone had hired Anzu Mazaki , for that role . Kaiba was annoyed on discovering this , as he knew she was a friend of Yugi . Just before the shootout began , Kaiba appeared on monitors on the floor . He warned Yugi that his opponents were mercenaries and told him to enjoy his " last game " . Kaiba ' s promise of a ¥10 , 000 bounty to each hitman for each opponent they killed , made the hitmen less willing to work together . Jonouchi ' s surprise attack , later followed by Honda ' s discovery of the ineffective guns and use of Anzu ' s working gun , allowed Yugi and his friends to win the shootout . Anzu accompanied Yugi for the next few games . Death T - 2 . In Death T - 2 , Kaiba had his butler , a former torturer , take Yugi and his friends to the Murderer ' s Mansion on the Electric Chair Ride . On the ride , the players were subjected to terrors and would be electrocuted to death if they screamed . His butler was killed in this stage , as Johji defecated on his lap , causing him to scream . Inside the Murderer ' s Mansion , Kaiba appeared before the group via holographic projection . He compared Yugi ' s group to living chess pieces being brought closer to checkmate and warned them that the serial killer , the Chopman , was hidden in the mansion . He explained that in order to find the exit , they would need to put their hands through four holes in the wall and press the correct button at the opposite side . Once their hands were inside the holes , Kaiba had them cuffed in place and showed them the guillotine above , which would drop in five minutes or if an incorrect button was pushed . Before disappearing , he told them he had left a clue to finding the correct button , in the room . Yugi solved the bllood clue , revealing the exit and saving him and his friends . Before Yugi ' s group left the mansion , the Chopman kidnapped Johji . Kaiba got Johji , who was a fan of his , to pretend he was alone in a room to lure Yugi and his friends in . He also gave him orders to attach a handcuff to whoever entered the room . The others would not believe Johji when he said he was alone , so Kaiba appeared on a monitor attached to the Chopman ' s torso . He said that one person had to enter the room to play a game with the Chopman , or he would give the Chopman the order to kill Johji . Jonouchi stepped inside and Johji attached the cuff , which was strung through a pedestal and attached to the Chopman . Kaiba explained that when the game began , each player would pick a weapon and fight to the death . Jonouchi managed to win by picking the handcuff lock with a candlestick holder and tricking the Chopman into ripping open the door and incinerating himself . Death T - 3 . As Yugi , Jonouchi , Anzu , Honda and Johji made their way to Death T - 3 , Kaiba realized that he underestimated some factors . He acknowledged that they were a good team and that their close friendship had been the key to beating the games , but he planned on breaking that union in the next stage . He thought to himself that friendship is just an illusion , evidenced by his theory that people in danger would be willing to betray their friends to save themselves . In this stage , blocks fell from the ceiling . The players had to avoid being flattened and climb the blocks to reach the exit . Kaiba assumed that their numbers would be a liability in this game and that they could not win without sacrificing a player . Everyone made it out , except Honda , who became trapped . Kaiba then compared Yugi to the king chess piece , Jonouchi to the knight and Honda to the rook and stated that the rook had been captured , beginning the countdown to checkmate . Death T - 4 . Before Death T - 4 began , Mokuba reminded Kaiba of their bet and got mad at Kaiba for betting Yugi would beat him . However Kaiba stood by his decision . He accused Mokuba of trying to show him up by challenging Yugi to a game before and said he knew the outcome of that game . However Mokuba claimed he had done it in the hope that Kaiba would like him if he won . Kaiba yelled at him that there is no such thing as brotherly love in the gaming world and until Mokuba realizes that he would always be a loser . Mokuba stormed off , determined to show Kaiba that he could defeat Yugi and prove he was a gamer . In Death T - 4 , Mokuba was defeated by Dark Yugi in a game of " Capsule Monster Chess " . Afterwards , Kaiba appeared on monitors over the Battle Box and gave Dark Yugi directions to Death T - 5 , where he said he was waiting . He spoke to Mokuba , stating how he had felt his " pathetic loser ' s gaze " staring at him for years . He reminded him of his repeatedly warning that if he played with fire he would get burned . He announced that only the winner could leave the Battle Box , while the loser must face a Penalty Game . To Mokuba ' s surprise , Kaiba subjected him to the Experience of Death . Dark Yugi , who was also shocked that Kaiba would do this to his own brother , reached into the Battle Box and pulled out Mokuba . This caused Mokuba to think about how Kaiba had changed since they were adopted and wondered if Yugi could return him to normal . Death T - 5 . In Death T - 5 , Kaiba faced Dark Yugi in a game of " Duel Monsters " . He dominated the early stages of the game with " Saggi the Dark Clown " equipped with " Dark Energy " , until it was defeated by Dark Yugi ' s " Gaia the Fierce Knight " . He then began Summoning his " Blue - Eyes White Dragons " . Dark Yugi managed to hold two of them off with " Swords of Revealing Light " . When all three were eventually free to attack , Dark Yugi drew the last piece of " Exodia " and defeated Kaiba . For Kaiba ' s Penalty Game , Dark Yugi inflicted the " Mind Crush " on him , destroying his evil side and leaving him in a coma . Mokuba disclosed his and Kaiba ' s history to Dark Yugi , Jonouchi , Anzu and Honda , detailing how Kaiba had changed for the worst . Dark Yugi explained that Kaiba was now reassembling the shattered puzzle of his heart , one piece at a time , with his own strength , so he would not make any mistakes that time . Mokuba vowed to wait forever when Dark Yugi said that Kaiba would return once the puzzle was completed . Duelist Kingdom . Off - island . Kaiba remained in a coma for the next six months . In the hopes of helping Kaiba finish the puzzle , Mokuba constructed two lockets , using a torn photo of them from the orphanage and put it around Seto ' s neck , believing it to be the final piece of the puzzle . Yugi believed that Kaiba would change once he awoke from his coma . He sometimes visited him in the hospital and refrained from entering " Duel Monsters " tournaments , until he could fight Kaiba in a fair Duel in one . Kaiba was later taken back to his mansion , where he remained under twenty - four - hour care . Some of the best doctors in the world looked at him and thought he might spend the rest of his life in that state . Kaiba ' s comatose state negatively impacted the management of KaibaCorp and caused stock to drop . His loss to Dark Yugi lowered the company ' s image , which had been dependent on Kaiba ' s status as the number one gamer in Japan . With the company in a poor state , Maximillion J . Pegasus took the opportunity to try and take over it , by making a deal with the company ' s leading shareholders , The Big Five . As part of the agreement , the Big Five needed to steal documents from Kaiba ' s safe , but then had to kidnap Mokuba , who swallowed the key to the safe . Before he was kidnapped , Mokuba left a report detailing what happened in Kaiba ' s absence , with their maid . One of Pegasus ' spies implanted in KaibaCorp , Saruwatari , stole Kaiba ' s Deck while he remained in the coma . During the Duelist Kingdom tournament , Dark Yugi Dueled the Ventriloquist of the Dead , who used a Seto Kaiba puppet , which he claimed contained Kaiba ' s soul bent on revenge . He also used Kaiba ' s stolen Deck . During the Duel , Kaiba awoke from the coma . His willpower was channeled into one of the stolen " Blue - Eyes White Dragon " cards , causing it to destroy itself . At this point in the Duel , the ventriloquist stopped using the Kaiba puppet . After the Duel , Dark Yugi inflicted the " Puppet Illusion " Penalty Game on the ventriloquist for stealing Kaiba ' s cards and playing with his soul . At Kaiba Manor , Kaiba scolded his bodyguards for allowing Mokuba to be kidnapped . Despite concerns about his health from his maid , he arranged to have a helicopter fly him to Duelist Kingdom , to confront Pegasus . As Kaiba swore not to rest until he destroyed Pegasus , his bodyguard reminded him that he had another enemy on the island , Yugi Mutou . While flying over the ocean , Kaiba noticed that position of the moon relative to the helicopter changed , indicating they were flying in circles . He deduced that his bodyguard and pilot had defected to Pegasus . The bodyguard realized that Kaiba had figured this out and held a gun to his head . As a last request , Kaiba asked that he move his cards to prevent blood getting on them . However , he used one of the cards , " Gyakutenno Megami " , to jam the gun , which he then grabbed , snapping the guard ' s finger in the process . He scolded the guard for making him damage a rare card and then forced him and the pilot to jump into the ocean . After that he flew the helicopter to the island himself . Duel with Jonouchi . After 11 : 00 pm , Kaiba landed on the island , near where Yugi and his friends were sleeping . Yugi returned Kaiba ' s Deck which he had retrieved from the ventriloquist . Kaiba thanked him , but not forgetting their previous encounter , insisted he would defeat Yugi in the future . He also vowed that he would be the one to defeat Pegasus and protect KaibaCorp with his own hands . Unwilling to forgive Kaiba for Death - T , Jonouchi seized him by the collar . Kaiba smirked that he had almost forgotten Jonouchi was there and ridiculed the level of the tournament upon seeing that Jonouchi was a participant . Jonouchi challenged him to a Duel , which Kaiba accepted and warned that he would damage Jonouchi ' s ego . Kaiba insisted that they use his Duel Disk s for the Duel . His monsters easily overpowered Jonouchi ' s , until he Summoned " Red - Eyes Black Dragon " , which Kaiba defeated with " Blue - Eyes White Dragon " , winning the Duel . Kaiba called Jonouchi a loser , whose confidence must be ruined and theorized that he would be too afraid to Duel again . Yugi was surprised to see that Kaiba had not changed , to which Kaiba replied that he was unwilling to forget the past and is still disgusted by their friendship . Before leaving , he told the group about the time he watched Pegasus Duel Keith Howard . Kaiba claimed that even Yugi ' s skills were not strong enough to beat Pegasus , while he himself stood a chance if he used his Duel Disks . Duel with Dark Yugi . At 2 : 30 am , Kaiba arrived at Pegasus Castle . Here , he was greeted by Croquet , who acted pleased to see him . Croquet denied kidnapping Mokuba and said it was too late to speak with Pegasus . He offered to arrange a room for Kaiba to spend the night and allow him to speak with Pegasus the next day . However Kaiba seized Croquet by the collar , demanding that he see him immediately . Croquet then showed him to a gateway , sealed with a lock containing star - shaped holes . To see Pegasus , he must pass through this gate , Croquet told him , and in order to do that , Kaiba would have to get 10 Star Chips . Kaiba lost patience with Croquet and struck him with his briefcase . Saruwatari rushed in and pulled out a gun , but Kaiba quickly put his own gun to Croquet ' s head . Recognizing Saruwatari as a former KaibaCorp employee , Kaiba reminds him that it is due to KaibaCorp training that he knows how to hold a weapon . He asked if Saruwatari finished the course and volunteered to teach him how to fire a gun . Croquet panicked and ordered Saruwatari to stand down . Kaiba took Croquet hostage in a guest room , threatening to snap his neck in a briefcase if Pegasus did not speak to him . Shortly afterwards , Pegasus appeared on a screen and permitted Kaiba to see him , if he could beat Yugi in a Duel . To ensure that Kaiba would comply , he showed him surveillance footage of Mokuba , locked up in the dungeon . Saruwatari gave Kaiba five Star Chips that Mokuba had stolen earlier and Pegasus instructed Kaiba to wager them in a Duel against Yugi . Kaiba waited outside the castle , blocking Dark Yugi and his friends from entering . He claimed to have known that Dark Yugi would defeat any opponents he faced on the island and identified himself as the only person in the world who could defeat him . While Honda and Bakura restrained Jonouchi from attacking Kaiba , Kaiba noticed that Jonouchi had earned ten Star Chips and said that he promoted him from a " loser " to a " deadbeat " ( In the Japanese version , he promotes him to an " uma no hone " , which literally means " horse bone " ) . Thinking of Yugi ' s success in Death - T , Kaiba wondered if people can be stronger by carrying the weight of protecting someone . With saving Mokuba in mind , he though he would find the answer by winning a Duel . He challenged Dark Yugi to a Duel , leading Jonouchi to suspect he was working for Pegasus , which Kaiba considered an insult . Despite his friends objecting that he already had enough Star Chips , Dark Yugi accepted . Kaiba and Yugi used Duel Disks and unlike when he Dueled Jonouchi , they used the " Duel Monsters " Expert Rules . With this rule set , the Solid Vision cards , hid players ' faces and bodies . Kaiba hoped that element or the distance between players would be enough to block Pegasus ' mind - reading powers . Players ' hand s could only contain up to five cards at a time . The five were also considered to be on the field with one set as the main monster . Kaiba took advantage of this by attacking cards in Dark Yugi ' s hand and Dark Yugi took advantage of it by using " Shift " to force Kaiba to attack the " Dark Magician " he had not Summoned . Kaiba used " Mystic Lamp " to retreat " La Jinn the Mystical Genie of the Lamp " and reflect Dark Yugi ' s attacks . To stop Kaiba hiding the lamp , Dark Yugi exposed Kaiba ' s hand with " The Eye of Truth " , which also revealed that Kaiba could be planning on fusing his " Blue - Eyes White Dragon " cards . Dark Yugi used " Mystic Box " to allow Dark Magician to destroy both " La Jinn " and the lamp . Kaiba used the virus " Crush Card " , disallowing Dark Yugi from having any monsters with 1500 or more original ATK and soon afterwards , fused his " Blue - Eyes White Dragon " cards into " Blue - Eyes Ultimate Dragon " . Dark Yugi used " Multiply " to create a legion of " Kuribohs " , which destroyed on impact , creating explosions to block the ultimate dragon ' s blasts . With " Living Arrow " , Dark Yugi used " Polymerization " to fuse " Mammoth Graveyard " with " Blue - Eyes Ultimate Dragon " , creating an unstable fusion , which decayed each turn weakening it . With five cards in play ; three " Blue - Eyes White Dragon " , " Polymerization " and " Negate Attack " , Kaiba was unable to draw new cards , while the dragon weakened . Fearing he was going to lose , Kaiba suffered a hallucination of Mokuba being trapped inside the dragon ' s rotting body . While Kaiba stared helplessly , a younger version of himself tried to save Mokuba , but failed . Kaiba himself began to rot , while his younger self glared angrily at him . Once the dragon was weak enough " Celtic Guardian " cut off one of its heads and Dark Yugi planned on winning by cutting off the second head . Kaiba said that game had just begun and started stepping backwards one tile for every 100 damage he took , putting him in danger of falling from the tower to his death if his Life Points reach 0 . He stated that if their positions were reversed , he would kill Yugi without hesitation . He then used " Monster Reborn " to revive one of the dragon ' s heads in full health with 3000 ATK . Although hesitant at first , Dark Yugi decided to attack , but was stopped by Yugi . Kaiba proceeded to win by attacking " Celtic Guardian " with the revived head . Kaiba said that Yugi showed weakness and that caring about the enemy ' s safety was foolish . Jonouchi argued that the game is not about murder . Kaiba replied that games , including cards , chess and war mean conflict between enemies and God gave people a single chip called life to use in these games . Anzu disagreed with his logic that people struggles are a game and said that he had truly lost to himself , by betting his chip as if it meant nothing and not having the courage to live with a loss . Jonouchi told him not to forget it was Yugi who saved him and tossed the Duel Disk back to him . As he entered the castle , Kaiba met Keith Howard , who questioned him about the " chip called life " , asking every person ' s chip was worth the same . He replied that he thought that distinction was to be made by " prize hunting hyenas " , such as Keith , while they hunted for their next feast . Duel with Pegasus . A Duel Arena had been arranged for Kaiba and Pegasus ' Duel , but Kaiba insisted that they use the Duel Disk s or he would not fight at all . Pegasus thought it would be a bad idea to fight on his enemy ' s terms , so he claimed to not be physically active enough to wield the Duel Disk . He agreed to use the Duel Disk under the condition that a proxy held it for him . He then brought out Mokuba ' s soulless body and showed Kaiba the " Soul Prison " card , his soul was sealed in . Refusing to fight against Mokuba , Kaiba agreed to use the Duel Arena and the " Duel Monsters " Standard Rules . Yugi warned Kaiba that Pegasus had a " Dragon Capture Jar " in his Deck , which Kaiba kept in mind , but still opted to use his " Blue - Eyes White Dragons " . Pegasus toyed with Kaiba at first . However by reading his mind , Pegasus was able to take Kaiba ' s " Blue - Eyes White Dragon " with " Prophecy " and stop his " Crush Card " virus , by increasing the ATK of " Saggi the Dark Clown " . He then used " Toon World " to turn his cards , including the " Blue - Eyes White Dragon " into Toons . Since Pegasus knew the contents of his hand , Kaiba opted to discard it and only use cards as he drew them . However Pegasus was still able to read Kaiba ' s subconscious memorization of his Deck . Refusing to let the " Blue - Eyes White Dragon " Pegasus took live as a " pathetic toon " , Kaiba destroyed it with anther " Blue - Eyes White Dragon " and " Shadow Spell " . Pegasus trapped the second " Blue - Eyes White Dragon " in " Dragon Capture Jar " and planned on using " Dragon Piper " to release it and convert it into another Toon . As Pegasus predicted , Kaiba tried to destroy the piper before this could happen , so he used " Doppleganger " to infect the piper with Kaiba ' s " Crush Card " . Once the jar was destroyed , all of Kaiba ' s high - ATK monsters were killed . Kaiba was only able to spend his last move reviving " Saggi the Dark Clown " . Before losing , he apologized to Mokuba and mentally bid farewell to Yugi . Pegasus subjected Kaiba to the Mind Card Penalty Game , trapping his soul in another " Soul Prison " . Seeing Kaiba risk his life to save Mokuba , Yugi concluded that Kaiba was just like him and Jonouchi . Rescue . That evening Honda asked Dark Yugi if he could save the two Kaiba brothers , as he owed Mokuba for saving his life in Death - T . Jonouchi on the other hand , thought that they got what they deserved . Before Dark Yugi Dueled Pegasus ' , he requested that the soul of Seto and Mokuba be freed if he won . Pegasus thought it was odd that Dark Yugi wanted to save his enemy , but agreed . When Pegasus lost , he upheld his side of the bargain and released them . Kaiba awoke in the dungeon and was let out by Saruwatari . He saw an apparition of his younger self , which led him to Mokuba . As the two hugged , the younger Kaiba finished the puzzle of his heart , while Dark Yugi commented that Mokuba must have been the final piece . Kaiba thanked Yugi for saving Mokuba and asked him to tell Dark Yugi that their battle is not over yet . When they learned that there were no boats on the island , Mokuba talked Kaiba into flying Yugi and his friends home , despite the size of the helicopter . Battle City . Preparation . Ishizu Ishtar invited Kaiba to a private exhibition at Domino Museum . Here she showed him a stone tablet , containing rectangular shapes , resembling " Duel Monsters " cards . She told him that ancient Egyptians had tamed evil spirits , named them and sealed them in slabs . Pegasus based " Duel Monsters " on these spirits after a trip to Egypt . Also on the tablet was a priest and a nameless pharaoh , who resembled Kaiba and Yugi . Above them were monsters resembling " Blue - Eyes White Dragon " and " Dark Magician " . Kaiba was skeptical over whether the stone was real or that " Duel Monsters " was created in Egypt . He prepared to leave , believing this to be a waste of time , but Ishizu called him back , telling him of legendary cards , the hidden Gods . These cards were too powerful and making them had been considered Pegasus ' biggest mistake . Pegasus had tried to destroy them , but could not bring himself to do it , so he buried them in Egypt . However two of them were stolen by the Ghouls . Ishizu entrusted Kaiba with the third God card , " The God of the Obelisk " and asked him to start a tournament to find the holders of the other Gods and reclaim them . Kaiba tested " Obelisk the Tormentor " and his new model Duel Disk against a Duel Machine , which used his Duelist Kingdom Deck . The computer Summoned " Blue - Eyes Ultimate Dragon " , but Kaiba defeated it using " The God of the Obelisk " . Obelisk ' s power was too much for the computer system , causing it to explode . Kaiba sent out invitations to the tournament in card magazines and online saying " come to the place where ancient duelists and their cards slumber in the stones " , along with a date and time for the announcement of the tournament . Kaiba allowed duelists whom he rated level 5 or higher on a scale of eight to participate . He met the duelists who got the invite in Domino City , where he explained the rules of the Battle City tournament that would be held in two days time . On the day the tournament began , Kaiba announced that he too would be taking part and that each of the 48 Duelists had been given 1 Puzzle Card which they must wage in Duels along with their rarest card . The finalists would be the eight duelists who collect six Puzzle Cards , which could be used to determine the location of the finals , which not even Kaiba knew . Preliminaries . Kaiba found Koji Nagumo insulting Mokuba , who called a foul after Koji tried to take a second rare card that was not part of the ante with a Duelist he just defeated . Kaiba tore up Koji ' s rare card " Hyozanryu " , saying Koji was going to lose it anyway as he challenged him to a Duel . Kaiba anted a briefcase of rare cards and " Obelisk the Tormentor " . He allowed Koji to use the cards from the briefcase in the Duel to compensate for " Hyozanryu " , but said he would take them after he beat Koji . Kaiba easily won with " Obelisk " and took Koji ' s Puzzle Cards . Kaiba received word of a God Card being played and took - off . He found Yugi in a Duel against Doll , who was possessed by Marik Ishtar and using the God card " Slifer the Sky Dragon " . Seeing Yugi drops to his knees , doubting he can win , Kaiba called down to him , ordering him live up to his reputation and thinking he is the only one who should defeat Yugi . After Yugi won , Kaiba congratulated him , but said it ' s a shame Yugi won ' t have " Slifer the Sky Dragon " for long and challenged him to a Duel . However Marik informed Yugi that his friends had been kidnapped . Yugi postponed the Duel as he must find his friends . Kaiba caught - up when Yugi was challenged to a Duel by two Rare Hunters , who couldn ' t decide which of them should face Yugi first . Kaiba appeared and told them to both duel at once in a Tag Duel against him and Yugi . They agree and Kaiba easily defeated both of them at once using " The God of Obelisk " . Kaiba took their Puzzle Cards and handed one to Yugi . He then offered to use KaibaCorp ' s satellite system to trace the location of Jonouchi ' s Duel Disk . As they searched for Yugi ' s friends , the guys were confronted by The Mask of Light . Yugi and Kaiba had to Tag Duel him and The Mask of Darkness on top of a skyscraper . The Duel was setup such that when a player loses , the glass roof below them shatters sending them to their death . Kaiba ' s refusal to work as part of a team , initially hindered his and Yugi ' s performance , while The Masks ' Decks had been built to work together and prevent the Summoning of the God cards . However Kaiba eventually accepted that they must work as a team . He sacrificed his " Blue - Eyes White Dragon " to prevent Yugi from losing and provoked The Masks turning them against each other . Yugi and Kaiba worked together to Summon " The God of Obelisk " , which defeated The Mask of Darkness , who used a parachute to save himself . Marik took control of The Mask of Light ' s mind after he surrendered . Kaiba seized him demanding they release Mokuba . However Marik didn ' t keep his promise and left the Mask of Light fall unconscious . Mokuba arrived with the helicopter , and Kaiba took Yugi to find his friends , having tracked the signal from Jonouchi ' s Duel Disk . They arrived at the Domino Pier and find Jonouchi and Anzu are possessed by Marik , with Jonouchi prepared to duel Yugi . Seeing the Duel had been set - up to kill the loser , Kaiba tried to call it off , but Marik disregarded his authority . Once Honda and Ryuji arrived at the Duel , Kaiba and Mokuba explained the situation to them . Towards the end of the Duel , Kaiba threw a card at one of the Rare Hunters monitoring the Duel . The card got lodged into his hand , causing him to drop the controls for a crane hovering a giant crate over Anzu . With him temporarily unable to drop the crate , the KaibaCorp helicopter pulled it away from Anzu . Once the Duel concluded with everyone alive , thanks to Kaiba saving Jonouchi from drowning , Kaiba parted and told Yugi that he ' ll see him at the finals . Battle Ship . Kaiba took his helicopter to the Domino Stadium , where he waited for the other finalists . After six of the other seven finalists arrived , the true location of the finals , the Battle Ship landed . On board Kaiba advised Yugi to start using his God card , " Slifer , the Sky Dragon " . Kaiba saw Jonouchi ' s quarter - final Duel against Rishid , who they believed to be Marik , as a chance to find out the abilities of his God card , " The Sun Dragon Ra " . During the Duel , both players were struck down by Ra ' s lightning . Kaiba declared that the first player to stand up will be the winner and if neither stand within five minutes they will both be disqualified . He learned that Marik was also a finalist under the disguise " Namu " and while Rishid had a fake " Ra " card , Marik held the real one . Mai ' s Duel against the Dark Marik was also used as a chance to learn more about " The Sun Dragon Ra " . When Mai tried Summoning Ra , which she managed to add to her own hand , hieratic text appeared on the card , which Mai needed to recite in order to Summon it . Kaiba had his satellites photograph the card , so he can have the text translated later , although Marik suggested that Kaiba is already able to read them . Once Mokuba began the translation , he found that some of Ra ' s effects are also printed there . In the last of the quarter - finals Kaiba found out the eight finalist is Ishizu Ishtar , as the two of them dueled . In the meantime , Kaiba had Mokuba work on translating Ra ' s text . Ishizu had already predicted Kaiba ' s moves for the Duel using her Millennium Tauk and foresaw her own victory . In the first few turns of the Duel , Kaiba had Ishizu send plenty of cards from her Deck to her Graveyard . Ishizu used " Exchange of the Spirit " , causing both players to swap the contents of their Decks with their Graveyard , leaving Kaiba with very few cards . Almost finished the translation , Mokuba came out to support Seto in the Duel . Ishizu deliberately allowed Kaiba to Summon " The God of Obelisk " , so that she may win using " Blast Held by a Tribute " , as predicted . However Kaiba was affected by the Millennium Rod and felt " Blue - Eyes White Dragon " calling out to him , feeling it wanted him to Summon it . Kaiba saw a vision of the sorcerer holding Kisara ' s body up to a " Blue - Eyes White Dragon " tablet . Kaiba followed the instinct , claiming he makes his own future and sacrificed " The God of Obelisk " to play " Blue - Eyes White Dragon " , which he used to attack and defeat Ishizu . Kaiba checked on the progress in translating the text for " The Sun Dragon Ra " . Mokuba told him that they were having trouble with the last few words , but Kaiba looked at the text in astonishment , finding that he ' s able to read it himself . Remembering what Marik said about only chosen people being able to read the text , what Ishizu said about him being connected to an ancient sorcerer and the instinct that told him to play " Blue - Eyes White Dragon " in the last Duel , Kaiba wondered what was happening to him . Duel Tower . Kaiba , his colleagues and guests arrived at Alcatraz for the Battle City finals . Kaiba , Yugi , Jonouchi and Marik partook in a Battle Royal to determine the matchups for the semi - finals . Each duelist selected a monster to exclude from their Deck to determine the order of play . Kaiba chose the " Masked Beast Des Gardius " , which he had taken from Mask of Light . Since it had the highest ATK , Kaiba got to go first . Since " The Sun Dragon Ra " is the strongest of the God cards , Kaiba planned to win " Slifer " off Yugi so he could have two Gods when facing Marik and " Ra " . Wanting to face Yugi in the semi - finals and too proud to purposely lose , Kaiba made sure he and Yugi were the last two standing in the Battle Royal , matching them up for the second semi - final . Before Jonouchi ' s Duel with Marik , Kaiba commented that Jonouchi didn ' t stand a chance against " Ra " . Jonouchi protested that he went up against " Ra " before , but Kaiba reminded him how it knocked him unconscious . Kaiba told Yugi that his computer had managed to translate " Ra ' s " effects . However , Yugi was unconvinced and believed Kaiba ' s connection with the past played a part in translating the text . Kaiba planned to use Jonouchi as a guinea pig , so he can study Marik ' s strategy . Had it been Yugi that was facing Marik , Marik would win " Slifer the Sky Dragon " making it harder for Kaiba to defeat him in the finals . Yugi smirked that Kaiba ' s plan had a flaw ; he has to get past him first . Towards the end of the Duel , Marik had Jonouchi hit hard by one of " Ra ' s " effects . Mokuba protests that Marik has gone too far , but Kaiba refused to stop the Duel as he must see " Ra ' s " abilities with his own eyes . Kaiba was stunned to see Jonouchi still standing after taking the blast . Jonouchi prepared to attack Marik directly with his " Gearfried the Iron Knight " to win , but collapsed . Kaiba gave Jonouchi 30 seconds to rise . Unable to do so , Jonouchi was disqualified . Kaiba faced Yugi in the second quarter - final . He created a holographic Colosseum of spectators around the top of the tower for the Duel . Kaiba tried to Summon " The God of Obelisk " at an early stage , but Dark Yugi manages to counter both his attempts . Kaiba stole " Slifer the Sky Dragon " from Yugi ' s Deck using " Voice of the Heavens " . However Yugi took it back with " Exchange " , which he had been planning to use on " Obelisk " . Yugi and Kaiba each managed to Summon their respective God cards . The two constantly altered the Gods ' ATK or blocked each others attack s , preventing the other from destroying their God . Eventually the two Gods attacked each other and after a number of alterations each ended up with 4000 ATK The battle of Gods caused Dark Yugi and Kaiba ' s consciousness to be transported to an ancient city . Here they saw " Obelisk " and " Slifer " turned to stone , while elsewhere , the Sorcerer Seto and Nameless Pharaoh battled . The Sorcerer Summoned Blue - Eyes White Dragon from a tablet and the Pharaoh countered with Dark Magician . The two returned to present time . Kaiba asked if Yugi had the same vision as he did . Yugi claimed that their Duel is related to the one from 3000 years ago , and Kaiba said their Duel is destined . Kaiba and Yugi continued the Duel . They quickly Summoned " Blue - Eyes White Dragon " and " Dark Magician " respectively . Kaiba used " Lord of Dragons " and " The Flute of Summoning Dragon " to bring out his other two " Blue - Eyes White Dragons " . Yugi used it to Summon Jonouchi ' s " Red - Eyes Black Dragon " from his own hand . Yugi blocked the attacks from two of the three dragons , destroying one of them and " Lord of Dragons " in the process . Kaiba used " Monster Reborn " and " Polymerization " to Summon " Blue - Eyes Ultimate Dragon " , but Dark Yugi played " Double Spell " copying Kaiba ' s last two Spell Cards , allowing him to Summon " Dark Paladin " . Dark Yugi told Kaiba that if he stands at the top filled with hatred , he will not find real victory . He will only have to find new hatred , and his future will be filled with endless hatred . Kaiba attacked " Dark Paladin " with " Blue - Eyes Ultimate Dragon " , but Dark used " De - Fusion " , splitting the " Ultimate Dragon " into three " Blue - Eyes White Dragons " . He used " Diffusion Wave - Motion " , allowing " Dark Paladin " to attack all three of them , winning the Duel . Kaiba thought Battle City was his tournament , the entire event was designed so that he would be victorious , he wanted to put the memory of his adoptive father behind him and be crowned the world ' s best Duelist atop his Duel Tower . Despite coming so close , his victory slipped away from him . Yugi compliments Kaiba on the Duel , but Kaiba said he doesn ' t want his pity . Yugi admitted Kaiba is a strong duelist , but he was defeated by the monster in his heart called " hatred " . Yugi pointed out how friendship helped him win , but Kaiba said that everyone is alone in this world and he doesn ' t want any pals to slow him down . Yugi called that sad , to which he just scoffs . Kaiba accepted his defeat and angrily gave Yugi his " The God of Obelisk " card , as per the rules of the tournament . Kaiba reconsidered and decided to help Yugi , despite hosting the tournament to beat him . Kaiba estimated Yugi ' s chances of winning to be 3 % , but he has a card that can beat " Ra " . If Yugi could figure out how to use it , it would give him a 20 % chance of winning . As he made his way to the Duel , Kaiba remembered Yugi saying that the strength of his friends brought him victory and wondered if Yugi can create a miracle if he entrusts him with this card . Before the Duel , Kaiba gave Yugi the card , " Devil ' s Sanctuary " . Kaiba told Ishizu that he only helped Yugi to prove her wrong when he loses . Kaiba watched the Duel and saw the card he gave Yugi , help out . He congratulated Yugi after he won . With the tournament over , Kaiba and Mokuba , initiated the self - destruction of the Duel Tower to destroy their memory of Gozaburo and his loss to Yugi . While everyone else left in the Battle Ship , Kaiba and Mokuba left in a jet , as they planned to start work on Kaiba Land in America right away . Transcend Game . Kaiba worked on a new Duel Disk model , the Neurons VR system , which linked the minds of Duelists across the world to KaibaCorp ' s Crystal Cloud Network . Connected individuals could create images based on their brainwave activity and Duel each other in the Duel Links world . While monitoring a group of people , who had volunteered to test the system , Kaiba took notice of Prana , an individual whose brainwave frequency transcended that of a normal person , allowing her to Summon monsters with a high - pulse ATK . Kaiba was intrigued by the element of danger she invoked , but also concerned from a business perspective . He also took notice of Sera , who removed her Neurons gear , during the test session . A few weeks later , while Kaiba was making adjustments to the Neurons test model , at his house , he uttered that on completion , he would rule as its king in the world of Duel Links . Sera then appeared behind him and said " You cannot become King . . . Not ever . . . " . He admired her ability to slip inside and recognized her from the test session . Sera claimed to be the test subject whose duty it is to shape his new world and thanked Kaiba for the creation of Duel Links . She discussed the prospect of an individual with superior consciousness being in the system and the Duel Links potential to grant access to other dimensions , beyond the realm of the living , something she knew Kaiba was interested in . She suddenly disappeared as she talked about Kaiba syncing with this superior consciousness . Mokuba Kaiba appeared on a screen before Kaiba and warned him of unfamiliar data registering in the Duel Links surveillance monitor . Kaiba was shown a projection of a globe , showing test subjects ' Neurons signals , following an abnormal pattern and being drawn towards an unknown consciousness . Kaiba recognized this as the dimensional ascension he had been looking for and logged into Duel Links via his VR pod . Inside the Duel Links , Kaiba boarded a " Blue - Eyes White Dragon " - themed jet and flew towards the dimensional ascension . He was approached by Sera ' s avatar Prana , who warned of the danger he was approaching and asked if he was prepared to face a world of evil , transcending the boundaries of mortal man . Kaiba asked if she was questioning if he had fear in his actions and warned her that anyone who stood in his way would be mercilessly eliminated . Prana offered to let him proceed if he could defeat her in a Duel and warned that he would die if he lost . Kaiba accepted the Duel . His " Blue - Eyes White Dragon " , with 3000 Pulse ATK , at first seemed no match for her 8800 Pulse ATK " Duza the Meteor Cubic Vessel " . Kaiba offered criticism of her negligence and suggested that she may still be a child , who needs to learn to better control her consciousness . Controlling his thought frequency , Kaiba brought the Pulse of " Blue - Eyes " to 19900 , destroying " Duza " and defeating Prana . Sera reverted to her regular appearance , as the Prana disappeared and Kaiba admitted to knowing it had been her . Sera ceased efforts to stop Kaiba and the two advanced towards the realm of the deceased . Kaiba saw Atem and Summoned his " Blue - Eyes White Dragon " to illuminate the infinite darkness . Kaiba thought " Here . . . I come . . . Atem ! ! " . However his " Blue - Eyes White Dragon " began to disappear , causing him to see Kisara . Meanwhile in the real world , Mokuba performed an emergency shutdown on the Duel Links , as Kaiba ' s amplified brain activity put his life in danger . Kaiba woke up , panting in his VR pod and convinced himself that he had really seen Atem . The Dark Side of Dimensions . In his continued attempts to communicate with Atem , Kaiba made a virtual reconstruction of him , based on his memories of Dark Yugi . Although Kaiba succeeded in defeating him in a Duel , he remained frustrated , as he deemed the reconstruction to be imperfect . In another effort , he commissioned an excavation at the Shrine of the Underworld to retrieve the pieces of the Millennium Puzzle . After the puzzle had been recovered , Kaiba traveled to the site , where the puzzle was being scanned by a computer . While waiting , Kaiba drew attention to the intruder , Aigami , and questioned how he had traveled from Domino City to Kul Elna in a matter of minutes . A confrontation led to Aigami using his Quantum Cube to dissipate members of KaibaCorp . Kaiba was able to protect himself from the cube ' s powers using the technology in his Duel Disk . Kaiba and Aigami Dueled using the Dimension Area ruleset and virtual cards . Aigami overpowered Kaiba at first , but refusing to lose his chance to Duel Atem , Kaiba slammed his hand into the ground and pulled out the physical , " The God of the Obelisk " card . Aigami thought it was impossible for him to use one the pharaoh ' s monsters . However Kaiba Summoned " Obelisk " and sacrificed two monsters to raise its ATK to infinity , and progressed to defeat Aigami . Although it took Yugi Mutou eight years to solve the Millennium Puzzle , Kaiba had a computer in his space station perform the reconstruction , with an estimate of a few hours to complete . The machine reported two pieces were missing , which Kaiba realized Aigami must have stolen . Kaiba had his men abduct Aigami , who was then brought before him . Kaiba failed to extort the missing pieces , but figured one was in Aigami ' s possession and the other in Yugi ' s and had Aigami taken to Kaiba Land . Kaiba approached Yugi at a crossing and demanded that he take part in a Kaiba Land exhibition for his new Duel Disk model . He showed Yugi the near - reassembled Millennium Puzzle and informed him of his goal is to face " the other Yugi " , deeming Yugi alone to be of little interest to him . At the exhibition , Kaiba impressed the audience by Summoning " Neo Blue - Eyes Ultimate Dragon " , which he used to destroy Solid Vision jets . He gave a speech about his new Duel Disk and introduced Yugi and Aigami , both of whom he said he would be Dueling for the remaining pieces of the puzzle . Due to a recent conflict with Aigami , Yugi insisted on Dueling him instead and was given a Duel Disk . Following Yugi ' s victory , Kaiba prepared to Duel Yugi for the two pieces . He placed the Millennium Puzzle in the center of the field , where it floated in a beam of light . He disregarded Yugi ' s arguments about the Duel being pointless and Atem no longer being inside the puzzle , until Yugi demonstrated it by inserting the last two pieces . Kaiba accused Yugi of deceiving him and continued the Duel , until they were interrupted by the reappearance of Aigami , who had become mutated and corrupted by the evil of the Millennium Ring . Yugi and Kaiba teamed up to Duel Aigami in a Shadow Game . Kaiba was defeated , but before disappearing , he gave the Millennium Puzzle to Yugi and said before dissipating , " Bring him back , Yugi " . Kaiba returned after Yugi , having successfully reincarnated Atem momentarily , defeated Aigami . Kaiba expressed interest when Yugi mentioned seeing Atem . He remarked , " I said he ' d be back . Hate to say I told you so , but , ' told you so " . When Yugi exclaims that Kaiba never stopped believing , Kaiba mentioned , " You have your bond with him , and I have mine . " As Yugi looks at him with surprise , Kaiba leaves , saying " Take care , Yugi , until our paths cross again . " Kaiba took possession of the Quantum Cube and brought it to the space station . Inside a pod , he activated the cube , causing the space station to be immersed in gold light , as he shot down the elevator shaft . Kaiba awoke in a desert near a city containing Atem ' s palace . He proceeded directly across the desert through the city into the throne room , where he stops before Atem ' s throne and activates his Duel Disk . Atem rose from his throne and replied with an impressed smile . Duel Academy . At Duel Academy , Kaiba was considered to be a legendary Duelist . Jaden Yuki thought of him , Dark Yugi , Mai and Jonouchi when he said that he was not going to back down in his Duel against Ryuga , like how the legendary Duelists never gave up . Decks . At first , Kaiba ' s Deck relied heavily on high - ATK monsters and quick combinations that add power to his monsters . His main goal was to Summon his powerful " Blue - Eyes White Dragon " . Before Battle City and the introduction of Tribute Summon s , " Blue - Eyes White Dragon " was much easier to Summon . Due to this , his strategy was fairly simple and effective as it only took Kaiba one draw to quickly overpower an opponent or overcome any situation . The only thing he had to do was to rely on a heavy - ATK monster and wait to draw one of his " Blue - Eyes White Dragons " to put his opponent on an uphill position . In Battle City , the rules have been changed and high - Level monsters required Tribute s to be Summoned . Due to this and his acquisition of " The God of the Obelisk " , Kaiba ' s strategy evolved . He utilizes strong Level 4 monsters , such as " Vorse Raider " , " Gadget Soldier " and his XYZ monsters . While still important to his strategy , his " Blue - Eyes White Dragons " are overshadowed by " The God of the Obelisk " . During " Yu - Gi - Oh ! R " , not having " The God of the Obelisk " anymore , " Blue - Eyes White Dragon " returns to be Kaiba ' s ace , with ways to get it easily with cards like " The Melody of Awakening Dragon " . He also introduces the " Material " , that just like his XYZ monsters , combine to form a most powerful monster that can count as any number of Tributes for high - Level monsters depending on how many monster he combines . School and Death - T . This Deck also contains two unnamed cards . This Deck also contained two unnamed cards . Duelist Kingdom . This Deck also contains one unnamed card . This Deck also contained one unnamed card .