Yako Tenma Yako Tenma is the main antagonist of " Yu - Gi - Oh ! R " . He is the protégé and adopted son ( often mistaken , or mistranslated as younger brother ) of Pegasus , and the biological twin brother of Gekko Tenma , who wants revenge for Pegasus ' death and disappearance ( although unbeknownst to him , it was actually Dark Bakura who killed Pegasus ) . He was always known as the less superior of the two Tenma brothers , constantly being defeated by Gekko in Duel s . Yako appeared to have acquired an inferiority complex from his treatment by others . Pegasus however , seemed to be the only one who recognized he had potential , and that he ' d develop into a great Duelist someday . He believes that Yugi killed Pegasus , and even when Gekko tells him that what Keith Howard told him is false , he said that " the reason Pegasus got killed is because Yugi won against him . " Tenma ' s name comes directly from 天馬 " tenma " , which is Japanese for " pegasus " ( the mythical creature ) . Design . Appearance . Yako is a young man of average height , with silver - green hair that trails down his back and separates into two above his forehead in a similar manner to Jonouchi . In the present , he wears a closed pink coat , white gloves , pants and shoes . After defeating Seto Kaiba , his coat falls open revealing that he wears a simple black shirt under it . When he appears as a hologram , he commonly wears a heavy maroon coat as a cape in a similar manner to how Dark Yugi does with his jacket on occasion . In the past , he wore attire similar to that worn by Pegasus and his hair was shorter . Personality . Yako is extremely determined to revive Pegasus , not letting anything stand in his way ; be it Yugi and his friends or Seto Kaiba . His mentality seemed to be slowly warped by the presence of the Wicked Gods , twisting him more and more as he had been exposed to them over time . He claims that Pegasus was his master and everything to him , and losing him was the worst tragedy that could befall him . He also held great enmity for his twin , Gekko . Gekko was often praised by Pegasus as a " perfect " Duelist , and Yako often felt that he was Dueling in the shadow of his twin . He failed to realize that Gekko was " perfect " in the fact that he would experience no growth as a Duelist , and was as strong as he ' d ever be . Yako ' s feelings for Gekko eventually caused him to use his brother as a pawn in his battle against Yugi . While at his most volatile , his right eye bulged due to his damaged mind . After the destruction of " The Wicked Avatar " , Yako ' s personality returned to his kind , calm demeanor he held before being exposed to the Wicked Gods . Abilities . He is highly skilled with technology . For example , he used advanced holograms to make it appear as if he could pass through walls , ceilings and other solid objects . Another example is that he was also able to use this technology in combination with the powers of the Wicked Gods to revive Keith Howard and remove Anzu Mazaki ' s soul from her body . He was able to use the powers of the Wicked Gods to control Gekko , though he referred to his doing so as " hacking " his body , suggesting that he did so in conjunction with technology . Biography . History . Yako along his twin brother , Gekko were orphans adopted by Pegasus to be trained as his protégés to be potential heirs to his company , I² . It became apparent the Tenma twins were considered Pegasus ' favorites among the adopted children , and they clearly were the most attached to him . One day prior to Duelist Kingdom , Pegasus discussed his plans of taking over KaibaCorp and reviving Cyndia . Unfortunately , this dream would never come true , and it was also the last time Yako would see his mentor alive . At some point after the Duelist Kingdom Tournament , he found Cyndia ' s card covered in Pegasus ' s blood , causing Yako to freak out . In anger , Yako demanded Mr . Crocketts tell him who did this , and not knowing what happened to Pegasus , he revealed that Yugi defeated him , giving Yako a target . In revenge , Yako locked himself in his room to research in the mystic science , which includes the Millennium Items , especially the Millennium Eye , and the designs of very powerful and evil cards that Pegasus left behind , but did not produce due to fear ; Yako used his researches to complete them , and named them the Wicked God s , which slowly corrupted him . He tested his plan to revive Pegasus by using " The Wicked Avatar " to revive Keith Howard . Yu - Gi - Oh ! R . Yako made his move after the Battle City Tournament , observing a recording of Yugi ' s defeat of Dark Marik , and declaring that Yugi had to pay for taking everything from him . He hacked into the KaibaCorp building ' s mainframe , making it through all of the firewalls , and preventing Isono from shutting the system down . He then appeared as a hologram , declaring the KaibaCorp had been taken over by the Asian division of Industrial Illusions . He kidnapped Anzu Mazaki , replacing her with a hologram . After school had finished at Domino High School , Yako appeared as a hologram to meet Yugi Mutou , emerging from a desk . Jonouchi initially thought he was a ghost , though Yugi realized that Yako was a hologram . Yako requested to Duel Yugi , and he accepted , switching to Dark Yugi . Yugi Summoned " Slifer the Sky Dragon " against Yako , but Yako countered with his newly revealed God card , " The Wicked Avatar " , which took the form of a black " Slifer " and destroyed " Slifer " with ease as " Avatar " was higher on the divine hierarchy of the God cards . He then called off the Duel and Anzu disappeared , revealing to the others that she had been a hologram , and told Yugi to come to the KaibaCorp building if he wanted to rescue her . Around the same time , he also contacted Kaiba in a similar manner , remarking when Kaiba suggested a facility to train future Duelists that Pegasus had also planned a similar idea . The Duel Disk s of people that Kaiba was observing began to malfunction , and Kaiba realized that Yako was behind it . Yako revealed that he had taken over KaibaCorp ' s Duel Ring Sever for a project of his , goading Kaiba into returning to Japan . After Yugi defeated Deschutes Lew , he talked with Bandit Keith , revealing that he needed the Duels to occur to have the R . A . Project to proceed . Later , after Yugi had defeated Maico Kato , bringing the total number of card professors in the building down to seven , he met him in person , Yugi sensing that he was real due to his Duelist ' s aura . He requested to Duel Yugi again , as his deck was not well prepared the previous time . He offered to let Yugi see Anzu if he won , but if Yako won , he would take the Egyptian Gods . Yugi accepted the challenge , and Crocketts led them to a theater to Duel . Yako quickly brought out three monsters using " Summoner Monk " , while Yugi countered with " Valkyrion the Magna Warrior " . However , despite Yugi ' s efforts , Yako was able to summon " The Wicked Dreadroot " , and power it up with " Divine Evolution " , with the Wicked God ' s effect halving the ATK and DEF of every other monster on the field . Yugi tried to Summon " The Sun Dragon Ra " , but Yako used " The Selection " to prevent its Summon . Yugi refused to give up , and Summoned " Arcana Knight Joker " , rather than attempting to Summon another Egyptian God . He lured Yako into attacking him , and used " Spellbinding Illusion " to negate its effects and allow " Arcana Knight Joker " to destroy it . Shocked that Yugi had destroyed the Wicked God monster , Yako abandoned the body he had been possessing to Duel Yugi , revealed to be that of his twin brother , Gekko Tenma . At the same time , he greeted Kaiba as he entered the building after defeating Willa Mette . Despite his defeat , Yako had advanced the R . A . Project a step further , the Summoning of " The Wicked Dreadroot " had allowed him to remove Anzu ' s soul from her body and trap her in the " Soul Prison " card he ' d given to Yugi . Seto Kaiba eventually made his way to the control room where Yako was , disabling the guards outside and Yako himself in quick succession with his briefcase . Yako simply laughed , and claimed that Kaiba couldn ' t stop him . He revealed that he was using the Duels of the building to power the Duel Ring Server , merging the card data to recreate Pegasus ' s soul , claiming that Pegasus had given a piece of his soul to each of the cards that he created . Kaiba scoffed at the theory , but Yako revealed that he had tested it on Bandit Keith . He suggested a Duel , claiming that his God card , " The Wicked Avatar " would defeat Kaiba . Kaiba , having not known that there were any other God cards , was skeptical , but agreed to Duel Yako at the Apex Arena . Yako seemed to be using a Spell and Trap card strategy , and Kaiba , despite some clever counters from Yako , who almost surrendered at one point , dominated the Duel , bringing out " Blue - Eyes White Dragon " . However , when Kaiba summoned " Blue - Eyes Ultimate Dragon " , Yako used " Junk Dealer " to steal the Fusion Material Monster s , and used them as Tributes to summon " The Wicked Avatar . " It was at this point that the effect of " The Wicked Avatar " was revealed - the ability to surpass all monsters on the field by having an ATK equal to the highest ATK on the field plus one , reflected by mimicking that monsters form . He destroyed the " Blue - Eyes Ultimate Dragon " with ease , leaving Kaiba to use a high - defense monster to protect himself . Yako simply used " Comparable Level " to summon three more low - level monsters , and use them as Tributes to bring out " The Wicked Dreadroot , " which " Avatar " mimicked . He destroyed all of Kaiba ' s monsters and wiped out his Life Points with the two Wicked God monsters . As Yugi had been stopped when Richie Merced defeated Gekko , Yako ' s Duel with Kaiba served as the final catalyst for the completion of the R . A . Project . He began to Summon the spirit of Pegasus , but Kaiba managed to send a program into the server and stop the Summoning , as Yugi was Dueling Cedar Mill at the time . Yako was distraught , nearly killing Kaiba when he pushed him off the Apex Arena , but realized that he could Duel Yugi as he ' d originally planned . He waited for Yugi to arrive . When he did , Gekko was accompanying Yugi . Gekko tried to dissade Yako from completing the R . A . Project , but Yako refused . Yugi requested that Yako release Anzu so that they could Duel as true Duelists , but Yako refused , as he was unable to release her , and asked Yugi gleefully if he liked the punishment of the Wicked Gods . Beginning their Duel , Yako started strong with " Beast King Barbaros " , which Yugi countered with " Arcana Knight Joker . " Yako then gathered four monsters with " Level Resist Wall " , one of which was destroyed , and then brought out " The Wicked Eraser " and destroyed " Arcana Knight Joker " . When Yugi defended himself with " Big Shield Guardna " , Yako Tributed " Eraser " to Summon " Gaap the Divine Soldier " , triggering " Eraser ' s " effect to destroy every card on the field , and allowing Yako to attack directly . He also revealed that he already had " The Wicked Avatar " in his hand by revealing it to power up " Gaap " . Yugi brought out his " Emissaries of Darkness , " but Yako quickly gathered three more sacrifices and Summoned " The Wicked Avatar " . Despite this , Yugi almost defeated it with " Union Attack " , but Yako was well aware of the card and countered it by using " Loss of Strength " to reduce the ATK of one of the attacking monsters to zero , and reducing Yugi to 98 Life Points in the process . Yako , confident in his victory , attempted to hurt Yugi further by using " Devil ' s Sanctuary " to reflect Yugi , with " The Wicked Avatar " taking the form of Yugi Mutou himself . He tried to convince Dark Yugi that Yugi had turned against him as it had been Dark Yugi that won all of Yugi ' s victories and left him with nothing , remarking that he understood the feeling as that had been how he felt when Gekko overshadowed him in their youth . Yugi denied this , stating that Dark Yugi broadened his horizons . Yako dismissed that , pointing out that Yugi didn ' t have a living , breathing reminder of his failures as Yako did . Though Dark Yugi attempted to buy time with " Swords of Revealing Light " , Yako destroyed them early and attacked . Yugi countered by bringing back " The God of the Obelisk " from the Graveyard , using its effect to boost its attack points to infinite , which also caused " The Wicked Avatar " to mimic it and also gain infinite attack points . At this point , " Avatar " would have won as it was higher on the divine hierarchy , but Yugi used the " Divine Evolution " card to upgrade " Obelisk " to the same level as " Avatar , " becoming " Obelisk The Progenitor " . Both God monsters clashed with " God Hand Impact " and destroyed one another , ending " The Wicked Avatar ' s " influence on Yako and restoring Anzu to her body . Yakko saw a brief vision of Pegasus before returning to the Duel . With the R . A . Project in ruins , Yako attempted to surrender , believing the Duel to be pointless . Gekko stopped him , stating that Pegasus never finished the Wicked God cards for Yako because he believed that he wouldn ' t need them , having seen the true Yako who wouldn ' t need a God card with his Millenium Eye . Yako agreed to continue the Duel , reviving " Beast King Barbaros " at its full 3000 ATK . Dark Yugi replenished their hands with " Card of Sanctity " in order for them to have a satisfying Duel . Though Yako Summoned his monster that was " almost a God , " " Beast Machine King Barbaros Ür " , Yugi was able to bring out both " Dark Magician Girl " and " Dark Magician " and use " Dimension Magic " to destroy " Barbaros Ür " , and finished the Duel with a direct attack from " Dark Magician Girl . " Yako reflected that Yugi ' s power was magnificent , and thanked Gekko for keeping the Duel going . He admitted that he was still sad about the loss of Pegasus , but declared that he had to cut the cord , tearing " The Wicked Avatar " into pieces as he said so . Jonouchi , Anzu , and Honda arrived at the top of the building , and the Tenma twins watched them reunite . Yako admitted that he was glad he didn ' t erase their smiles . Decks . Wicked God . Yako uses a Wicked God Deck . It focuses on Level modification tactics to bring out multiple monster s , which he can Tribute for the Summoning of the Wicked Gods , particularly " The Wicked Avatar " . Many of his monsters are named after demons . In addition , several of his monsters are unnamed . Gekko . In order to test the powers of " The Wicked Dreadroot " , Yako possesses his twin brother Gekko and forces him to Duel Yugi . The Deck focused on swarm ing the field with " Seraphim " monsters in order to bring out " Dreadroot " , while countering the opponent with cards such as " The Selection " .