Trial of the Mind The Trial of the Mind , known as the Weighing of the Mind in the Japanese version , was a Shadow Game in the " Yu - Gi - Oh ! " manga and first series anime , which Shadi used to test Dark Yugi . Manga events . Prior events . Shadi came to Japan to put Curator Kanekura and Professor Yoshimori on trial for an excavation they carried out in the Valley of the Kings , which he saw this as trespassing on the territory of the gods . After killing Kanekura in the Question of Truth Shadow Game , Shadi found the Millennium Puzzle on his desk and soon discovered it had been solved by Yugi Mutou . Shadi entered Yugi ' s soul room using the Millennium Key in order to test Yugi , but instead became tested by Yugi ' s alter - ego Dark Yugi as his search for Dark Yugi ' s true soul room has turned into the Labyrinth Treasure Hunt Shadow Game . Shadi lost the Shadow Game , but was spared by Dark Yugi , who said that their game had really only just begun . When he left Yugi ' s soul room , he learned that Yugi was unaware of Dark Yugi ' s existence and returned the Millennium Puzzle to him . Shadi prepared to put Yoshimori on trial later that day . However after entering his soul room , Shadi learned that Yoshimori was expecting a visit from a group of people , including Yugi . Shadi saw this as his chance to test Yugi and planned a Shadow Game , involving using Yoshimori as an instrument . The game . Setup . Shadi used his Marionette Design to redecorate Yoshimori ' s soul room , turning him into a zombie with the intention of making Yugi ' s friends suffer . Yugi , Sugoroku , Anzu and Jonouchi visited Yoshimori in his laboratory at Domino University , hoping to comfort him after Kanekura ' s death . They were greeted by the zombified Yoshimori and suspected something was up when he claimed that someone killed Kanekura . Yoshimori then tried to strangle Jonouchi , which Shadi suspected would cause Dark Yugi to emerge . Unable to pull Yoshimori off Jonouchi , Anzu grabbed a globe and walloped him in the face , knocking out three of his teeth and causing him to let go . As Yoshimori proceeded to chase Yugi and his friends , Shadi thought that possessing Yoshimori alone might not be enough and decided to redecorate Anzu ' s soul room too . Yoshimori knocked Sugoroku out and was then lured out of the room by Jonouchi . With everyone else gone , Shadi showed Yugi that he had possessed Anzu . Shadi ordered Dark Yugi to come out and explained that Anzu will only do what he commands her and will even die if he gives the order . With that Dark Yugi appeared . Everything Shadi needed to set up the game was in the laboratory and he instructed Dark Yugi to meet him on the roof in ten minutes at eight o ' clock . While Shadi and Dark Yugi prepared for the game , Jonouchi was still being chased by Yoshimori . He tried punching him in the face to try and snap him back to normal , but only knocked out more of Yoshimori ' s teeth . Shadi suspended a board over the edge of the roof of the university , by tying four ropes to it and stringing them through a fence , where they were tied to ushebti on the opposite side . He stood Anzu on the board and had her hand touch the ropes . A fifth ushebti was tied to the Millennium Key , which the other four ropes ran though . When Dark Yugi arrived , Shadi explained that the four ushebti holding up the board represented Dark Yugi ' s heart , and would break if a weakness in Dark Yugi ' s heart was detected . If the four of them would break , Anzu would fall to her death . He explained that the fifth ushebti represented his own heart , and if it broke , the Millennium Key would slide along the ropes to Anzu ' s hand ; if she touches it , she would return to normal . During the explanation , fear was detected in Dark Yugi ' s heart , causing one of the ushebti to break . Stage 1 : Hell Quiz . For the first stage of the Shadow Game , the ground cracked as corpses emerged and began grabbing Dark Yugi . The corpses were just an illusion and Dark Yugi needed to find their true nature to pass the stage . Shadi gave him the riddle , " What creeps on the ground and clings to the pillars ? " as a hint to find out what the illusion really was . Although Dark Yugi knew that the corpses were an illusion , he couldn ' t break free from it . He tried to relax and find the answer the riddle , hoping that would make the illusion go away . He figured that the corpses were what creeps on the ground and he was the pillar . He tried looking at it the other way around , thinking of a pillar and wondering what comes off of it onto the ground . He realized that the answer was a Shadow and that the illusion ' s true nature was his own shadow . Once he announced this the illusion disappeared . Stage 2 : Concentration or Death . A large hole appeared in the ground near Dark Yugi and Ammit ' s hands and head emerged . She grabbed onto Dark Yugi ' s arms and opened her mouth wide over his body . Although Ammit was another illusion , but her bite would still kill Dark Yugi . Shadi explained that Ammit ' s least meal was Kanekura ' s soul , causing Dark Yugi to realize that Shadi was the one who killed Kanekura . In order to dispel the illusion of Ammit , Dark Yugi had to clear the stage by playing " Concentration or Death " . A 3×3 grid of stone plates labeled with question marks appeared before Dark Yugi . Shadi compared the tablets to the game concentration , where players attempt to find matching cards on a surface of face - down cards by turning over two at a time . Dark Yugi pointed out that such a game would require an even number of plates , but there were nine in this game . Shadi explained that there is an extra plate in the middle , and Dark Yugi must name the picture on it without turning over any of the nine plates . Dark Yugi was told that the plates are a mirror of Ammit and that he has fives minutes to solve the puzzle before Ammit closes her jaws on him . Dark Yugi tried to concentrate , but he thought there wasn ' t enough clues and found it hard to think straight as he was too scared . One of the ushebti started to crack . Remembering that if shows weakness , the ushebti supporting Anzu would break , he vowed to save her , even it costs his life and promised that he ' d solve the puzzle no matter what . In his last minute , Dark Yugi ran the puzzle by himself again ; there are nine plates , the one in the middle is the puzzle and all of them are a mirror of Ammit . Since a mirror reflects a person ' s form and this was a game of concentration , he deduced that , eight of the plates represented four pairs of things Ammit had and the remaining one was something she had only one of . Ammit had two ears , eyes , nostrils and hands . In the last second , he called out that the answer was " mouth " . The nine plates flipped over , revealing images of the body parts Yugi mentioned , with the mouth in the middle . With that , Ammit , the plates and the holes in the floor all vanished . While Dark Yugi was playing Concentration or Death , Jonouchi was still being chased by Yoshimori . He led Yoshimori to a room for a fight , but sprayed him with a fire extinguisher . However Yoshimori knocked the extinguisher out of his hand and pushed him out the fourth story window . Jonouchi managed to grip onto the side of the building and saw Anzu on the board up above . Stage 3 : Game of Death . Shadi congratulated Dark Yugi on passing the first two stages and still having three of his ushebti intact , but vowed to make them all shatter in the next game . Dark Yugi started to think about what he could do to make Shadi ' s ushebti break and wondered if Shadi had any weaknesses . For the final stage , the " Game of Death " , Shadi created an illusion of Jonouchi who still had his bully persona , having caught a glimpse of him like this from Yugi ' s memories , when he visited his soul room . Jonouchi took the Millennium Puzzle from Dark Yugi and the ground around them disappeared creating a bottomless pit . The rules were each player took turns tossing the Millennium Puzzle and their opponent moved two floor tiles in the direction that the puzzle landed pointing . Although Dark Yugi was sure that this Jonouchi was another illusion , he worried that there was still a chance it could be the real Jonouchi , possessed like Yoshimori and Anzu . He tried talking Jonouchi out of playing the game , but Jonouchi taunted Yugi about caring so much for the Millennium Puzzle . For a split second Yugi regained control of his body and wept , causing two ushebti to break . Jonouchi went first and caused Dark Yugi to move two spaces back . To Shadi ' s surprise , Dark Yugi refused to take his turn , saying he didn ' t want to play this game with Jonouchi . Jonouchi rolled again , sending Dark Yugi two more spaces in the direction of the pit , such that he was on the edge of their platform . Jonouchi offered Yugi his next turn , reminding him that if he might land in the pit next turn . Once again , Dark Yugi passed . Shocked , Shadi asked why Dark Yugi was throwing the game and if it was because he admits defeat . Dark Yugi said that it wasn ' t defeat , but trust in his friend . Shadi insisted that Dark Yugi had lost because he was unable to defeat his past and that Dark Yugi ' s excessive trust was the weakness he was testing in this stage . Shadi said that trust is more easily broken than ushebti and friendship is nothing but weak hearts clinging together for solace . He claimed that true strength of the heart is the ability to believe in yourself and had Dark Yugi sent his friend to the pit , he would have gained that strength . Shadi ordered the illusion of Jonouchi to throw the puzzle one last time . However Jonouchi stood still and the illusion vanished . Dark Yugi explained that there is no past or present with friendship and if you trust your friends they will trust you . Endgame . The last rope supporting Anzu began to break under its pressure . However Jonouchi , having climbed up the side of the building held onto the board to support it . Shadi was astonished to see Dark Yugi and his friends supporting each other , without hesitation and his ushebti began to crack . Dark Yugi explained that true strength of the heart cannot be gained alone ; the power to trust your friends is the true strength of the heart . Shadi ' s ushebti then shattered , causing the Millennium Key to slide down to Anzu ' s hand , causing her to return to normal . Anzu was surprised to find herself standing over the side of a building and screamed in terror . Below her , Jonouchi urged her to get back onto the building , as he couldn ' t hold her up much longer and the zombie Yoshimori was coming . Anzu began walking back to the roof , but Jonouchi lost his grip and the board fell out of place . However Dark Yugi arrived in time to catch Anzu ' s hand and pull her onto the building . Unaware of Dark Yugi ' s existence , Anzu was surprised to see Yugi acting this way . With Yoshimori tugging at Jonouchi ' s leg , Dark Yugi instructed Jonouchi to make him touch the Millennium Key . Jonouchi was also surprised by Yugi ' s different attitude , but complied and Yoshimori was returned to normal . Dark Yugi , Anzu , Jonouchi and Yoshimori climbed back over the fence onto the roof , where they met up with Sugoroku who had regained his consciousness . Aftermath . Shadi accepted his defeat and said that while he had used a number of illusions to test Yugi , it had seemed to him that the image of friends trusting and helping each other was an illusion . Dark Yugi also realized that the Millennium Puzzle also has the power of unity : like with friends , its pieces bind together to become undefeatable power . The rest of Yugi ' s friends faced Shadi , and Jonouchi warned him not to come back . Shadi agreed to leave , and said that although he was beaten he was happy ; his bloodline had been searching for a long time for someone like Yugi , who may be the one able to " open that door " . Jonouchi and Anzu decided to approach Yugi about how he had been acting different , but Dark Yugi had returned control of the body to regular Yugi . Yoshimori thanked everyone for coming to see him , but couldn ' t remember what happened . Jonouchi tried blaming Anzu for all of his lost teeth . As Shadi left the university , the board Anzu was standing on vanished and the Millennium Key dropped from the side of the building to his hand . As he caught it , he said to himself , " Goodbye , Yugi . . . We ' ll meet again ! "