Yu - Gi - Oh ! ZEXAL - Episode 001 " Go With the Flow , Part 1 " , known as " I ' m Kattobingu ! ! " in the Japanese version , is the first episode of the " Yu - Gi - Oh ! ZEXAL " anime . It first aired in Japan on April 11 , 2011 and in the United States on October 15 , 2011 . Summary . Yuma Tsukumo appears before The Door with a demonic face wrapped in chains . A voice says that whoever opens this door will receive a new power but in compensation comes with great risk . Emperor ' s Key worn around Yuma ' s neck lights up as he wonders about his most precious thing . Suddenly the ground below him crumbles away causing him to fall into an abyss . In reality , Yuma wakes up after falling out of the hammock in his attic . He realizes that was the first time he had that dream . The clock strikes at 8 o ' clock and Yuma realizes that he is late . He gathers up his cards and climbs down a rope from the attic into his bedroom . Downstairs , his sister Kari Tsukumo is working on a few flat screen monitors . She requests that the desk clears up a space in the 3 : 00 delivery . Yuma rushes down and asks why she didn ' t wake him . Kari replies that she ' s busy in the morning with news replies and since Yuma is in junior high he should wake himself up . Yuma pulls a face behind her back and dashes out . Yuma puts his shoes on at the door and tells his grandmother Haru Tsukumo that he is going out . Haru tells him to take lunch with him , but Yuma says he has no time . Haru is unhappy with this and catches the collar of his shirt with her broom and lifts him off the ground . She explains that if Yuma does take lunch , then he will be in trouble ( in the dub , this is changed to to Haru wanting a good - bye kiss ) . Later Yuma rushes through the neighborhood and leapfrogs over a Litterbot , which is a litter - collecting robot . The Litterbot is left spinning out of control . He apologizes and continues running . Bronk Stone calls Yuma ' s name and leaps in front of him on his skateboard . He declares that it is a race to the school entrance . Yuma accepts the challenge , throws a rice cake into his mouth , and runs in front . He claims that he is gaining on Bronk . They reach a stairway . Yuma takes the steps while Bronk rides down the slope in the middle . Bronk reaches the bottom first and kicks another Litterbot , sending it spinning out of control into Yuma ' s path . Yuma bumps into the Litterbot and is sent flying . His cards fall out of his messenger bag and are scattered with the litter the robot had been collecting . Yuma shouts at Bronk , who continues the race , leaving Yuma behind . A couple of robots gather around where Yuma fell and mistake his cards for litter . Yuma desperately grabs his cards back and tries explaining that they ' re not trash . However , the Litterbots continue by saying " Dueling Trash " angering Yuma , who says " Listen you twin twits , they ' re not trash ! " Up above on a cable car Tori Meadows anxiously looks down . Her friends asks that Yuma should get some new cards , as the Litterbots think they are trash . Tori blushes and agrees with them . Later at the school gym twenty trapezoid blocks have been stacked . A group of students are gathered around watching . Bronk says that if Yuma jumps over these blocks , he would have set the school ' s record . Yuma says that he can beat the high record . He yells " I ' m feeling the flow ! " , and jumps at the blocks but knocks the stack over and falls on his face . Tori asks if he is okay while Bronk points and laughs that Yuma is an idiot . At the swimming pool Yuma tries swimming the entire length of the pool in one breath . Tori wishes him luck while Bronk says that it is impossible . He tries saying that swimming one length and holding his breath is no problem . He inhales some water , which then makes him come back up and spit out the water he inhaled . Bronk then calls him an idiot . In class , Tori sits next to Yuma , who is now exhausted . She asks why Yuma does all those challenges . Yuma says that it is all fun and begins to say his catchphrase but Tori says that nothing will work . Yuma explains that she just doesn ' t understand and that the important thing is to keep fighting and as long as you don ' t give up you will someday succeed . Tori smiles and Yuma clasps the Emperor ' s Key , saying that he has this no matter what happens . Tori asks if it is a keepsake of his traveling parents . Yuma affirms and says that the key opens many possibilities . Tori asks if it would work on her , but Yuma just says " no " , much to her surprise . He continues and explains that when he has the key he feels like he can take on any challenge . He stands up and yells " I am feeling the flow " with the whole class and teacher listening . During their break , Yuma and Tori go to a square where students are Dueling . They put on their Duel Gazer s and enter an augmented reality . The two duck as a giant fish flies past them . Yuma laughs and and begins to find an opponent to duel . As they walk among the other students , Yuma asks Tori who he should duel today , Tori replies more like who to lose to today , Yuma asks what that was supposed to mean . Tori directs his attention to a Bronk Dueling someone . They rush up the stairs and find that he is Dueling Shark . Shark announces that he is performing an Xyz Summon . Since he control s two monsters with the same Level , " Big Jaws " and " Skull Kraken " , he can use them as Overlay Units to Xyz Summon an Xyz Monster . He overlays the two Level 3 monsters and Summons the Rank 3 " Submersible Carrier Aero Shark " . Yuma explains that the special thing about Xyz Summoning is that the monsters aren ' t sent to the Graveyard , but become Overlay Units to support the Xyz Monster . Although he doesn ' t have any Xyz Monsters himself , Yuma thinks that they are amazing , and that the litter bots wouldn ' t be calling his cards trash . Shark gets " Submersible Carrier Aero Shark " to attack Bronk directly , dropping his LP from 800 to 0 while his remain unscathed at 4000 ( the actual attack hitting is cut from the dub ) . The augmented reality disappears and Shark approaches Bronk . Having promised to do so earlier , Shark takes Bronk ' s Deck . Yuma interrupts and asks what he is doing . Yuma identifies himself and states that he is Bronk ' s best friend . Two lackeys come over to Shark and ask if Yuma knows who he is . Yuma replies that he is aware that Shark is the boss of bullies in the school . Shark explains that him and Bronk had a little arrangement , whoever wins gets the loser ' s deck . Yuma asks why Bronk would agree to Sharks deal , and he replies that these guys kept calling him a big chicken and that they challenged him to a duel . Yuma tells Shark if he is going to challenge Bronk , then that would mean that Shark has to challenge Yuma to a Duel . One of Shark ' s lackeys says that Yuma is out of his mind and that isn ' t even in the same league as Shark . Yuma asks if that was a no , and calls Shark a big chicken . Shark says to Yuma what happenes to someone if they called him chicken . Yuma thinks something bad , but Shark says that it hasn ' t happened to him once . Yuma declares that this is the first time Shark being called a chicken . Shark admires Yuma for being confident , and holds out Bronk ' s Deck and tells Yuma if they did duel , what will Yuma exchange if he lost . Yuma looks down at the Emperor ' s Key and hasn ' t thought about that part . Shark realizes Yuma ' s fixation with the object and swipes it while his lackeys hold Yuma back . Yuma demands that Shark returns the key , Shark says that it must be of value to Yuma . He then drops the key on the ground , and says that he will duel for it , stepping on it and breaking it . Yuma falls to his knees and picks up one of the pieces . He asks Shark why he did that , Shark says that Yuma is right on the fact that he is a bully . Shark smirks and says it looks like he can ' t return this Deck . Yuma tries to attack Shark but is restrained by Bronk . Since Yuma isn ' t giving up and says that they can come to some sort of arrangement . Shark decides that if Yuma wins he gets Bronk ' s deck back and that if he loses , Shark gets Yuma ' s deck and tells Yuma to come on sunday at the station courtyard , and that if he wants Bronk ' s deck back , he has to be there . At night , Yuma suffers the same nightmare which said that he must lose something important to him to gain a power . Another day at the school gym , Tori asks Yuma if he ' s going to try and jump the twenty blocks again . However , Yuma appears more serious than the day before and opts not to . At the pool , another student asks Yuma if he is going to try the underwater lap today . He declines and Tori splashes water at him , trying to encourage him to cheer up . Yuma explains that he ' s not feeling the flow , since Shark broke his key . After school , Bronk skates up to Yuma and Tori and asks if Yuma plans on Dueling Shark tomorrow . Yuma doesn ' t know yet , but Bronk tries to talk him out of it fearing that Yuma will lose . Yuma asks how he would know but Bronk argues that Shark made it to the Duel Nationals last year . Bronk admits that this is his own fault and that he doesn ' t want Yuma to have to suffer on his behalf . Yuma insists that he isn ' t doing this for Bronk but because he needs to teach Shark that he can ' t push people around and doesn ' t care if Shark made it to the nationals , and says that some day he will make it there too . Tori is impressed by Yuma ' s speech . Bronk is surprised but not fully confident . He says to Yuma that it ' s up to him what he does and tosses him the part of the key Shark threw away . Yuma is touched that Bronk found this and asks him how . Bronk says that he went looking for it and skates away . That night , Yuma looks at his Deck . He then says that maybe the litter bots are right on his cards being trash and looks at a picture of his parents . He reminds himself that his dad used this Deck before and concludes that it must be left to Yuma for a reason . The next morning Yuma rushes out of the house but is called back by Haru . She tosses him a packed meal and says that it ' s duel fuel and to take down Shark . At the park , Yuma , Tori and Bronk face Shark and his lackeys . Shark congratulates Yuma for showing up and that he should say goodbye to his cards . Yuma replies that the only thing Shark will be getting is a good old fashion butt kicking , Shark wonders why . Yuma says it ' s because he is feeling the flow , and readies his Duel Disk and Duel Gazer . The augmented reality is set - up for Yuma and Shark ' s Duel and their friends are linked in as spectators . Yuma goes first . His hand contains " Ganbara Knight " , " Bye Bye Damage " , " Wonder Wand " , " Gagaga Magician " , " Goblin Out of the Frying Pan " , and " Zubaba Knight " . He Summons " Zubaba Knight " and says that he cannot attack because he started , so he ends his turn . Shark begins his turn saying he intends to ground that knight ATK . Shark ' s hand contains " Salvage " , " Skull Kraken " , " Jawsman " , " Aqua Jet " and " " Big Jaws " . He draws " Zeus ' Breath " and Summons " Big Jaws " , which has 1800 ATK . Shark explains that when two monsters in Attack Position battle , the one with the lower ATK is destroyed and its controller receives damage equal to the difference between their ATK . Yuma is surprised and says that means he will be taking 200 points of damage . Shark replies that such a weak monster should have been Summoned in Defense Position but even if he had a stronger one it wouldn ' t have made a difference . Shark activates " Aqua Jet ( anime " , increasing the ATK of " Big Jaws " attack by 1000 until the End Phase . " Big Jaws " attacks " Zubaba Knight " . " Zubaba Knight " is destroyed and Yuma ' s LP drop to 2800 . Shark Set s a card and ends his turn . Yuma says that he just started and is already losing and wants to even the score begins his turn and Summons " Gagaga Magician " in Attack Position . Shark says that Yuma does not listen , as he just summoned a monster that is weaker than his . However Yuma says he gets it and equip s " Gagaga Magician " with " Wonder Wand " , increasing its ATK by 500 . Yuma says to Shark that he should play weak monsters in Defense Position , and that " Gagaga Magician is not a weak monster any more . Bronk and Tori celebrate the fact that Yuma ' s monster having more ATK than Shark ' s . Yuma attacks " Big Jaws " with " Gagaga Magician " . Shark says that he is going to activate a trap card , Yuma is surprised to see a trap card ; the Trap Card " Zeus ' Breath " . It negate s the attack and inflicts 800 Effect damage to Yuma since Shark controls a WATER monster , " Big Jaws " . Yuma is knocked back and his LP drop to 2000 . Yuma leaps back up and having seen Shark ' s Trap , announces that if Shark can play trap cards , so can he , and that ' s what he does and ends his turn . Bronk slaps his own face in shame and tells Yuma that since he can Set either a Spell or Trap Card he shouldn ' t be telling his opponent which one it is . Tori also yells at Yuma , telling him to come to his senses . Shark mocks Yuma for telling him to place a trap card , and says that it ' s no big deal . He Summons " Skull Kraken ( anime ) " , which has only 600 ATK . Yuma feels relieved because none of Shark ' s monsters are stronger than his " Gagaga Magician " , and are not a problem to him , but Shark uses the effect of " Skull Kraken " to destroy one face - up Spell or Trap Card , so Shark destroys " Wonder Wand " returning the ATK of " Gagaga Magician " to 1500 , which is lower than that of " Big Jaws " . Bronk is worried because Shark controls two monsters with the same Level so he is aiming to Xyz Summon . Bronk doubts that Yuma can win . Shark asks Yuma if he could really win Bronk ' s deck with those skills . Yuma thinks to himself that he thought he was feeling the flow but isn ' t because the key is broken . Shark sees Yuma clutching onto the key and says that he stomped Yuma ' s key to pieces and that now he is going to stomp on Yuma . Yumat Shark who says that in the end Yuma cannot do anything alone . Yuma argues that he isn ' t someone like that and no matter how much he fails , how much he gets laughed at , he has always felt the flow , because he has always believed in himself . He says that " when you ' re feeling the flow , there ' s no going back . And I so am ! " , and rips the broken key of his neck . The piece of the Emperor ' s Key in Yuma ' s hand begins to shine brightly and the other piece in his attic is transported to Yuma ' s hand where it joins together with the other piece . Yuma finds himself at the demonic door he had seen in his dream . Again it tells him to open the door to obtain a new power but if he does he will lose the thing he treasures most . Yuma runs towards the door , yelling " Let ' s flow ! " , and puts the key in the door ' s lock . Yuma is thrown back and the chains around the door snap as it is opened . Suddenly , a mysterious figure named Astral flies towards Yuma who is then trapped within a sphere made of blank cards . The sphere shatters and Yuma is returned to the park where he is still Dueling Shark . Yuma wonders if he had been dreaming again but finds the Emperor ' s Key is fixed . He wonders what happened and looks over at Shark , who is surrounded by a purple aura . Shark asks what is going on as he feels a strength overflowing within himself . A voice tells Shark to let the Number s take hold . Shark overlays " Skull Kraken " and " Big Jaws " to Xyz Summon " " . Yuma asks what kind of monster is that . Bronk is surprised since he hasn ' t seen that monster before up until now . Tori asks what it is but Bronk doesn ' t know and is confused about the whole Number thing . Shark activates the effect of " Number 17 : Leviathan Dragon " . By detach ing an Overlay Unit , " Leviathan Dragon " gains 500 ATK . He detaches " Skull Kraken " , raising its ATK to 2500 . " Leviathan Dragon " then uses its " Shark Stream Blast " attack to destroy " Gagaga Magician " , lowering Yuma ' s LP to 1000 . Shark says that it looks as though this duel is about to end and he shall finish Yuma with his next strike . Yuma lies on the ground in pain and starts to doubt himself . However , Astral appears and tells Yuma to rise up . Yuma asks Astral who he is . Featured Duels . Bronk Stone vs . Reginald " Shark " Kastle . Duel begins from an unspecified turn . Bronk has an empty field and 800 LP , while Shark has " Big Jaws " ( 3 / 1800 / 300 ) and " Skull Kraken " ( 3 / 600 / 1600 ) in Attack Position and 4000 LP . Shark ' s turn Shark overlays " Skull Kraken " and " Big Jaws " in order to Xyz Summon " Submersible Carrier Aero Shark " ( 3 / 1900 / 1000 , ORU : 2 ) in Attack Position . " Submersible Carrier Aero Shark " attack s directly ( Bronk : 800 → 0 LP ) . Yuma Tsukumo vs . Reginald " Shark " Kastle . Turn 1 : Yuma Yuma draws " Zubaba Knight " . Yuma ' s hand contains " Ganbara Knight " , " Bye Bye Damage " , " Wonder Wand " , " Gagaga Magician " and " Goblin Out of the Frying Pan " . He Normal Summon s " Zubaba Knight " ( 3 / 1600 / 900 ) in Attack Position . Turn 2 : Shark Shark draws " Zeus ' Breath " . Shark ' s hand contains " Salvage " , " Skull Kraken " , " Jawsman " , " Aqua Jet " and " Big Jaws " . He Normal Summons " Big Jaws " ( 3 / 1800 / 300 ) in Attack Position . Shark then activate s " Aqua Jet " to increase the ATK of " Big Jaws " by 1000 ( " Big Jaws " : 1800 → 2800 ATK ) . " Big Jaws " attack s and destroy s " Zubaba Knight " ( Yuma : 4000 → 2800 LP ) . Shark Set s a card . On Shark ' s End Phase , the effect of " Aqua Jet " expires ( " Big Jaws " : 2800 → 1800 ATK ) . Turn 3 : Yuma Yuma draws " Gogogo Golem " . He then Normal Summons " Gagaga Magician " ( 4 / 1500 / 1000 ) in Attack Position . Yuma then activates " Wonder Wand " , equip ping it to " Gagaga Magician " and increasing its ATK by 500 ( " Gagaga Magician " : 1500 → 2000 ATK ) . " Gagaga Magician " attacks " Big Jaws " , but Shark activates his face - down " Zeus ' Breath " to negate the attack and ( as Shark controls a face - up WATER monster ) inflict 800 damage to Yuma ( Yuma : 2800 → 2000 LP ) . Yuma Sets a card . Turn 4 : Shark Shark draws . He then Normal Summons " Skull Kraken " ( 3 / 600 / 1600 ) in Attack Position . As " Skull Kraken " was Normal Summoned , Shark activates its effect to destroy " Wonder Wand " ( " Gagaga Magician " : 2000 → 1500 ATK ) . Shark ' s hand contains " Salvage " , " Booming Urchin " , and " Jawsman " . Shark overlays " Big Jaws " and " Skull Kraken " in order to Xyz Summon " " ( 3 / 2000 / 0 , ORU : 2 ) in Attack Position . Shark then activates the effect of " Leviathan Dragon " to detach " Skull Kraken " ( " Leviathan Dragon " : 2 → 1 ORU ) and increase its ATK by 500 ( " Leviathan Dragon : 2000 → 2500 ATK ) . " Leviathan Dragon " attacks and destroys " Gagaga Magician " ( Yuma : 2000 → 1000 LP ) . " Duel continues in the next episode " . Differences . From the manga . This episode is based on Ranks 1 : " " and 2 " " of the manga . A number of changes are made , including : Featured cards . The following cards appeared in this episode . Cards in italics debuted here .