Dark Yugi ( Toei ) Dark Yugi is the " Yu - Gi - Oh ! " Toei anime version of the character Dark Yugi , also romanized as Yami Yugi . The Toei anime is based on volumes 1 to 7 of the manga series . Dark Yugi is a spirit who resided within the Millennium Puzzle . When Yugi completed the puzzle , Dark Yugi took up Yugi ' s body as a host . Occasionally he takes control of Yugi ' s body to defend him and his friends from bullies and dangerous people by challenging them to dangerous Dark Games . His existence is initially unknown to Yugi , who mistakenly credits memory loss to Dark Yugi ' s periods of control . Yugi and his friends later learn of Dark Yugi ' s existence . According to other series , Dark Yugi is the soul of Pharaoh Atem , stripped of memories and sealed in the Millennium Puzzle . However details of this version of Dark Yugi ' s past are not explored because this series was canceled . Appearance . Dark Yugi ' s appearance is more maniacal than his later appearance in the NAS anime . Compared to Yugi , Dark Yugi ' s voice is deeper and more confident , his fringe is less stiff and his eyes are red , rather than purple . On transformation to Dark Yugi , Yugi ' s form zoomed into a shadow of Dark Yugi , with glowing eyes and the Eye of Anubis on his forehead . Personality . Dark Yugi shares several personality traits with Yugi , mainly his strong bond with his friends , as he always comes out to protect them whenever there ' s trouble . He chooses to keep his existence a secret from everyone including his own host , however when he was finally found out he revealed himself with little hesitation . Dark Yugi comes of confident and cool minded . In Dark Games , he frequently plays around with his opponents and usually lets them think they ' re taking the lead only to then outsmart them . However he can lose his composure when the Dark Game isn ' t under his control , this usually happens when he ' s not the one who starts the game . Though his intentions are noble , Dark Yugi is rather aggresive and malevolent against his victims during Dark Games , punishing them with harsh Penalty Games that usually leave them traumatized and / or injured . In some cases , the Penalty Games Dark Yugi inflicts can be even more cruel than whatever his opponent was doing to Yugi and his friends . Despite this , he doesn ' t seem to inflict Penalty Games unless he feels it ' s necessary , and in one case he even saved Mokuba from Kaiba ' s artificial Penalty Game . Biography . School . Yugi Muto solved most of the Millennium Puzzle while he was under the pressure of coming up with money to pay Ushio , for his self imposed body guard fees . However he was beaten - up by Ushio as he searched for a missing piece . Katsuya Jonouchi returned the last piece to Yugi , as he tried fighting Ushio off . Barely conscious , Yugi finished the Millennium Puzzle and his body became host to Dark Yugi . Dark Yugi confronted Ushio and challenged him to a Shadow Game . A deck of cards , which Dark Yugi pretended was the money , was placed on top of a dome and both players hung freely from a rope over around the spike at the top of the dome . Lined on the dome alongside between the two players was a row of cards . How they advanced to the top was dictated by what card they turned over . Ushio attempted to cheat , earning him a Penalty Game , where he imagined he fell into a pit of monsters . When Anzu Mazaki was held captive by the escaped convict , Jiro the Jorogumo , armed with a gun at Burger World , Yugi was forced to serve Jiro cigarettes and vodka . Dark Yugi took control and challenged Jiro to a game . With Anzu blindfolded she couldn ' t see who was challenging Jiro ; It sounded like Yugi ' s voice , but was too confident and daring to be Yugi . Playing a Shadow Game , where each player can only move one of their ten fingers , Jiro chose his index finger that pulls his gun ' s trigger and Dark Yugi chose his thumb to light the cigarette lighter . Dark Yugi lit the convicts cigarette but then dropped the lighter onto the convicts hand while it is pouring a 90 % alcohol drink into his glass that has overflowed onto Jiro ' s body . Should Jiro pull the trigger , the recoil of the gun would tip over the lighter and set him alight . Jiro cheated by putting down the gun and removing the lighter , so Dark Yugi inflicted a Penalty Game , where Jiro believed he was set on fire . Shotaro Akaboshi stole a watch Honda had bought for Miho Nosaka . Dark Yugi met up with him later and played a Shadow Game , where each player tried to stop the watch after it activated closest to 10 seconds , after 10 seconds a pendulum would pass and should the player be too slow their hand would be cut off . Shotaro lost but still attempts to take the watch after he lost and was given a Penalty Game , where he imagined his body became made of clockwork parts . During the Digital Pet Duel after Haiyama attacked Yugi and his friends and tried turning Honda into his pet , Dark Yugi connected Yugi ' s Digital Pet , U2 with Haiyama ' s . The game became a Shadow Game and the pets appeared as real beings . Using data it incorporated from a connection with Jonouchi ' s pet , U2 upgraded form like Dark Yugi and was able to defeat Haiyama ' s pet . Haiyama started whipping his pet , telling it to get up . For Haiyama ' s Penalty Game , he imagined the pet turning on him and eating him . Mayumi had left a puzzle love letter for Jonouchi under his desk . This results in Ms . Chono setting Anzu up to face expulsion . For her cruel intentions , Dark Yugi plays a Shadow Game with Ms . Chono , where they assemble smashed mirrors while blindfolded . Ms . Chono cheats and Dark Yugi inflicts a Penalty Game on her , making her make - up peel away , revealing her true ugly face . Warashibe , who was obsessed with Miho , forced her into a game of " Capsule Monster Chess " . After realizing Warashibe cheated by using a rigged dispenser , Yugi and Miho try to leave , but Warashibe traps them by dropping a portcullis , which breaks and falls on Yugi and Miho . Dark Yugi emerges and finishes the game , winning it . Warashibe receives a Penalty Game , where he imagines himself being trapped inside a giant " Capsule Monster Chess " capsule . When Miho enters a popularity contest at school , a girl obsessed with her beauty tears Miho ' s swimsuit and dress , Dark Yugi challenges her to a Shadow Game involving pulling her flowers and whoever pulled the last loses . Her victory seemed inevitable with one flower left and it being Dark Yugi ' s pull , but Dark Yugi pulled the one from her hair leaving the true last one for her . She is given a Penalty Game , showing herself as an old person . Later she dunks herself with water and is upset and withdrawn from the competition . Death - T . Dark Yugi does not appear during most of Death - T , but comes in right before Yugi battles Mokuba Kaiba in " Capsule Monster Chess " . And then beats Kaiba in " Duel Monsters " for a final time . Monster World . Dark Yugi appeared when Dark Bakura trapped Yugi and his friends ' souls in " Monster World " figures while they were playing a Shadow Game , at the same time Yugi and Dark Yugi finally meet in person . Dark Yugi played for all of them against Dark Bakura . Dark Yugi quickly noticed that Bakura is using dice - rolling techniques to get a lot of advantage so he did the same , forcing Dark Bakura to agree to ban using such techniques . Dark Bakura began cheating using Mind Dice that always roll the numbers he wants . When his avatar Dark Master Zorc was damaged , Ryo Bakura took control of his left arm and started hindering Dark Bakura ' s playing , allowing Dark Yugi ' s side to take the upper hand . Dark Yugi noticed it and used Yugi ' s ability to take control of opponents to rescue Bakura , adding another player to their side and further weakening Zorc . When Zorc was about to be defeated , Dark Bakura made a final attempt to win by destroying Zorc which would also destroy the rest of the players , resulting in his victory . Bakura , Yugi and his friends ruined his plan by destroying the Mind Dice which allowed Dark Yugi to defeat Zorc and Dark Bakura . The next day Bakura showed his friends a diorama of the events that happened , which included Dark Yugi .