Dark Yugi and Ryota Kajiki ' s Duel ( manga ) Dark Yugi and Ryota Kajiki faced each other in " Duel Monsters " , in the preliminary stage of the Duelist Kingdom tournament , in the " Yu - Gi - Oh ! " manga . The terrain for the Duel was 50 % Ocean and 50 % Desert , split between Kajiki and Dark Yugi ' s sides of the field respectively . Events . Prior . Ryota Kajiki left fish cooking over a fire unattended in the hopes that it would attract Duelists to the cliffs , where his monsters were at an advantage due to the Ocean Field Power Source . While Dark Yugi and his friends were desperately searching for food , Katsuya Jonouchi caught he scent of Kajiki ' s fish and tried to convince his friends that the should take the food for themselves . Anzu Mazaki disagreed , but eventually everyone sat down around the food . Kajiki then emerged from the ocean and began arguing with Jonouchi over ownership of the fish . When Kajiki saw that the others were Duelists and one of them was Yugi , he realized he had made a big " catch " with his " bait " and offered to share his food with them . Kajiki told the others about how he and his father had lost their boat in a shipwreck . He blamed the incident on pollution nearby causing the ocean to be angry . The reason he entered the tournament was to win the prize money to buy a new boat . After the meal , Yugi and his friends got up to leave , but Kajiki threw a harpoon , which stuck into the ground just beside Yugi . He then explained that the fish had been bait to lure in Duelists and challenged Dark Yugi to a Duel . Dark Yugi ' s side of the field consisted of the Desert terrain , while Mako ' s consisted of the Ocean . Duel . 1st turn : Kajiki Kajiki Summoned " Devil Kraken " in Attack Mode in the Ocean ( " Devil Kraken " : 1200 → 1560 ATK ) . It hid itself under the water . 2nd turn : Dark Yugi Dark Yugi Summoned " Imp " in Attack Mode . He then noticed that Kajiki ' s monster was not visible , making him unable to attack it . 3rd turn : Kajiki Kajiki got " Devil Kraken " to emerge from the water , attack and destroy " Imp " ( Dark Yugi : 2000 → 1740 Life Points ) and then retreat back into the water . He described this technique as his " sea stealth attack " . 4th turn : Dark Yugi Dark Yugi Summoned " Feral Imp " in Defense Mode . He thought that this was his best move for now and planned on using " Feral Imp " to teach Kajiki a lesson next turn . 5th turn : Kajiki Kajiki played " Jellyfish " in Defense Mode ( " Jellyfish " : 1500 → 1950 DEF ) . 6th turn : Dark Yugi Dark Yugi equipped " Horn of the Unicorn " to " Feral Imp " ( " Feral Imp " : 1300 → 2000 ATK ) and switched it to Attack Mode . Although Dark Yugi could not see Kajiki ' s monsters , " Feral Imp " used a lightning - based attack , so he was able to attack the Ocean and the electricity would flow through and attack all monsters within it . However " Jellyfish " absorbed the electricity and became stronger as a result , while the ATK of " Feral Imp " returned to normal ( " Feral Imp " : 2000 → 1300 ATK ) . 7th turn : Kajiki " Devil Kraken " attacked and destroyed " Feral Imp " ( Dark Yugi : 1740 → 1480 Life Points ) . 8th turn : Dark Yugi Dark Yugi Summoned " Silver Fang " in Attack Mode and activated " Mystical Moon " , increasing its ATK ( " Silver Fang " : 1200 → 1560 ATK ) . 9th turn : Kajiki Kajiki Summoned " Leviathan " in Attack Mode in the Ocean ( " Leviathan " : 1800 → 2340 ATK ) . " Leviathan " attacked and destroyed " Silver Fang " ( Dark Yugi : 1480 → 340 Life Points ) . The tidal wave from the attack flooded Dark Yugi ' s side of the field . Since the moon ' s gravitational pull affected the tide , this covered twice as much area as usual due to the presence of the moon card . As a result , Dark Yugi was left with one Desert zone . 10th turn : Dark Yugi Dark Yugi Summoned " Giant Soldier of Stone " in Defense Mode in the Desert ( " Giant Soldier of Stone " : 2000 → 2600 DEF ) . 11th turn : Kajiki Kajiki suspected Dark Yugi was going to move " Giant Soldier of Stone " into another zone to create an island , giving him room to play more monsters , so he Summoned " Megalodon " in Attack Mode in the ocean ( " Megalodon " : 1500 → 1950 ) and got it , " Leviathan " and " Devil Kraken " to surround " Giant Soldier of Stone " giving it no room to move . 12th turn : Dark Yugi Dark Yugi switched " Giant Soldier of Stone " to Attack Mode . Kajiki was surprised and reminded Dark Yugi that he could not attack any of his monsters . However Dark Yugi explained that he was not getting " Giant Soldier of Stone " to attack any of them . Instead , he got it to attack and destroy his own card , " Mystical Moon " . With the moon , gone its effect on the tide disappeared , so the waters flowed out of the zones around " Giant Soldier of Stone " , leaving Kajiki ' s monsters stranded . Dark Yugi then Summoned " Curse of Dragon " in Attack Mode ( ATK : 2000 ) and activated " Burning Land " to destroy Kajiki ' s monsters and take out his Life Points ( Kaijik : 2000 → 0 Life Points ) and win the Duel . Aftermath . Kajiki was gracious in defeat and complimented Dark Yugi , who said that Kajiki was not too bad himself . Kajiki was then left with one Star Chip , which he promised to use to start over and work to win the prize money for his boat .