Yu - Gi - Oh ! ARC - V - Episode 099 " A Vicious Cycle " , known as " The Eternal Duel " in the Japanese version , is the ninety - ninth episode of the " Yu - Gi - Oh ! ARC - V " anime . It first aired in Japan as a one hour special with episode 100 on April 3 , 2016 and in Australia on December 2 , 2016 . It became available with official subtitles via Crunchyroll on March 14 , 2017 . Summary . Sylvio and Gong run through the streets towards the smoking Sector Security Headquarters and Sylvio begs Gong to wait up , protesting that Gong is running too quickly for someone who is wearing metal sandals . Gong snaps that his friends and comrades are in danger ; he can ' t just wait . They hear a bird ' s cry and stop and see Shay flying overhead on " Raidraptor - Rise Falcon " , and Sylvio angrily asks why Shay can ' t give them a ride . The High Council ' s helicopter lands outside the Sector Security Headquarters and Yuya leaps out . Jack and Crow drive past on their Duel Runners and Jack tells Crow , " Let ' s go ! " Crow agrees , and they both crash through the glass of the windows . Up above , Shay orders " Rise Falcon " to attack and " Rise Falcon " destroys a window with a sonic scream . " Rise Falcon " swoops into the building and Shay leaps from his monster and runs into the building . Declan and Roget face off . Declan reiterates that Roget equipped a monster already unaffected by card effects with an Equip Spell Card to prevent it from being destroyed in battle . Roget reminds him that it also has the ability to inflict 1000 damage during each of his turns for each Spell Card he controls and he calls it a truly impenetrable combo . No matter who they are they cannot defeat this . Declan adjusts his glasses and he warns Roget that there are no absolutes in either business or Dueling . No matter how carefully one prepares for risks there is a gap in every plan . " A gap ? " Roget asks . Declan explains that it is the duty of the elite to find and exploit that gap , and he declares his turn and he draws . He activates the Continuous Spell Card , " Forbidden Dark Contract with the Swamp King " , which allows him to Special Summon the Level 7 " D / D / D Chaos King Apocalypse " from his hand with its effect negated . Roget observes that Declan also has a Pendulum Monster . Declan then explains that he can then use the Special Summoned monster as a Fusion Material to perform a Fusion Summon . He fuses " Apocalypse " with the " D / D Lamia " in his hand , and he chants " Chaotic king who watches over the world ' s fate . Drink the blood washed away by time and become a dragon - slaying hero ! Fusion Summon ! Be born ! Level 8 ! D / D / D Dragonbane King Beowulf ! " Roget comments that it ' s as expected of the Professor ' s son to perform a Fusion Summon without a Fusion Spell . Declan then activates the effect of " D / D Lamia " from his Graveyard , allowing him to send a " Dark Contract " to the Graveyard and Special Summon it . Sending " Forbidden Dark Contract with the Swamp King " to the Graveyard , he Special Summons the Tuner monster . Roget is shocked to learn that Declan has a Tuner monster , and he realizes that Declan can also Synchro Summon . Declan replies that of course he can ; he has mastery of all Summoning methods after all . Yuya , Jack and Crow run through the corridors , Yuya calling Zuzu ' s name . Declan uses the Scale 6 " D / D Savant Thomas " and the Scale 8 " D / D Savant Nikola " to Set the Pendulum Scale , allowing him to simultaneously Summon Level 7 monsters . He chants , " Grand power that shakes my very soul , arise within me and give birth to a new light that rends the darkness . Pendulum Summon ! Be reborn from my Extra Deck ! D / D / D Chaos King Apocalypse ! " Then Declan tunes the Level 7 " Apocalypse " with the Level 1 " D / D Lamia " and he chants , " Climb over the corpses of heroes , carrying your bloodstained blade ! Synchro Summon ! Be born ! Level 8 ! D / D / D Cursed King Siegfried ! " Roget is shocked that Declan can also perform a Pendulum - Synchro Summon . Declan activates the effect of " Siegfried " , allowing him to negate the effect of a face - up Spell or Trap Card until the next Standby Phase . He chooses " Ancient Gear Magic Shield " and " Siegfried " fires a beam of red light from its forehead , striking the shield and dissipating the energy . The DEF of " Gear Devil " returns to 1800 , much to Roget ' s shock . Declan declares his Battle Phase , attacking " Gear Devil " with " Beowulf " . As " Beowulf " rampages forwards and glows with lightning , Declan explains that the attack of " Beowulf " will inflict piercing battle damage . " Beowulf " destroys " Gear Devil " , reducing Roget to 2800 LP . Declan declares the finishing blow and he attacks directly with " Siegfried " . " Siegfried " charges and reduces Roget ' s LP to zero with one swipe of its greatsword . Roget screams as the force flings him back into the wall and shocks him with electricity – and vanishes . Declan flinches in shock . But then Roget appears again , and he tells Declan that it won ' t end , this Duel will never end . Outside the room Riley has just been informed by Moon Shadow that Roget is immortal . Moon explains that he and Sora Dueled Roget . Sora defeated him with an attack from " Frightfur Bear " , flinging Roget into the wall of the corridor , which shimmered with the same light as the room that Declan and Roget are currently Dueling in . Roget had vanished , much to Sora ' s shock , and Moon had tried to look for Zuzu . But Roget had reappeared with a fresh five cards in his hand and his body crackled with lightning ; his Duel Disk declaring " Intrusion Penalty : 2000 LP " and reducing him to 2000 LP . Roget ' s laughing continues in the present , while Declan takes note of the intrusion penalty , realizing that this is a different Roget from before . Roget agrees , but he claims that this does not change the fact that he is himself ; Jean - Michel Roget . That is why Roget will not lose ; even if he is defeated time and time again , he will revive like a phoenix , until Declan is worn , beaten , and crying that he cannot fight anymore . He bursts out laughing while Declan remains silent . Sylvio and Gong arrive at Roget ' s office and Sylvio is shocked by the devastation . Gong muses that Sora broadcasted his message from here and Sylvio asks if Sora got caught up in the explosion . Shay states that something like this will not kill Sora . He will not die until he completes his mission ; Sora Perse is one with such tenacity . Outside the room where the Duel is taking place , Moon attempts to use his stolen ID to open the door , but all he gets is an error message . He laments that he can do nothing about the lock . Yuya , Jack and Crow run around the corner , Yuya calling Riley and Moon ' s names . Riley responds in kind , and Yuya asks where Zuzu is . Riley explains that Declan is Dueling Roget in order to get her back . Declan activates the Pendulum Effect of " Thomas " , allowing him to return a " D / D " Pendulum Monster from his Extra Deck to his hand . He returns " Apocalypse " to his hand and then he Set s a card to end his turn . Roget confirms that the Duel will continue until Declan surrenders and he excitedly suggests that they enjoy themselves before laughing . Outside , Crow curses ; their enemy is right in front of them and they can ' t do anything . Gong , Shay and Sylvio race up , Gong calling Yuya ' s name . Yuya quickly explains that Zuzu is in the nest room and that Declan is Dueling Roget in order to get her back , but the door is locked . Sora ' s voice interrupts , claiming that he can open the lock for Yuya . Yuya gasps Sora ' s name and Sora apologizes for losing Celina and Zuzu . He falls forwards when he tries to take a step and Yuya catches him , telling Sora not to force himself . Sora thanks Yuya and he tells him to leave it to him ; he will open that lock for Yuya . Off to the side , Jack looks at Crow and they exchange nods . Sora activates a " Hacking mode " of his Duel Disk while Yuya holds him up , and he begins entering commands . The door opens and the Lancers run in , with Gong carrying Sora . Yuya cries Zuzu ' s name and Riley cries Declan ' s , but Declan throws out his arm and wards them back . He muses on the idea of an eternal Duel and deems it interesting . Yuya asks , " eternally ? " and Roget confirms that he will never lose . " If it can continue eternally , that is " , Declan notes . He warns Roget that he will eventually surrender before him . Roget incredulously asks if Declan really thinks that he will surrender to him , and he asks what nonsense Declan is spewing . He declares his turn and draws . Declan immediately Special Summons " Apocalypse " from his hand via its own effect , and then the effect of " Apocalypse " destroys " Thomas " and " Nikola " in his Pendulum Zone s . Roget is shocked and Declan clarifies that he can only activate this effect once per turn , and only during his opponent ' s turn . Roget asks if Pendulum was the weapon of the Lancers and he asks if Declan has gone mad for abandoning them . Declan retorts that he has not abandoned them and he activates the effect of " Nikola " since it was destroyed and sent to the Extra Deck , allowing him to return a " D / D / D " Pendulum Monster he controls to his hand and re - Set " Nikola " and " Thomas " in his Pendulum Zones . Then he activates the Continuous Trap Card " Dark Contract with the Swinging Abyss " , allowing him to inflict the DEF of " D / D " Pendulum Monsters that return to his hand to Roget . " Apocalypse " has 2000 DEF , and it blasts twin serrated disks from its back that crash into Roget and reduce his LP to zero . Roget is flung into the wall and he vanishes again . Gong gasps that Roget vanished , but Moon warns them that he ' ll reappear again . And sure enough , Roget rematerializes and he derides Declan ' s attempts as pointless . Sylvio and Yuya are shocked and Sylvio gasps that Roget is back again as Roget steps forwards and takes the intrusion penalty , reducing him to 2000 LP . Roget declares that no matter how many times they defeat him he will be revived . " Yes and the same thing will repeat over and over again , " Declan explains . Roget asks , " What ? " and Declan clarifies that he will Special Summon " Apocalypse " from his hand and destroy " Nikola " and " Thomas " in the Pendulum Zones . But then he ' ll use the effect of " Nikola " to return " Apocalypse " to his hand and return " Nikola " and " Thomas " to the Pendulum Zones , thus inflicting the 2000 DEF of " Apocalypse " to Roget and defeating him . And since Roget will always have 2000 LP as a result of the intrusion penalty , he ' ll continue to be defeated eternally . Roget gasps in shock , and Declan asks Roget to tell him what his plan is now . He looks up , as do everyone else , to see a gap in the shimmering walls where the real Roget is Dueling with a visor over his eyes and Zuzu is bound beside him . Yuya calls Zuzu ' s name and Declan angry asks if Roget intends to continue . Roget rips off the visor and he furiously asks how much further Declan will go to make Roget take the fall for Declan ; using these Lancers as a front and acting like some kind of hero ? Yuya , Sylvio and Gong all gasp and Gong asks what Roget means . Roget explains that Declan ' s father – Leo Akaba – is the Professor himself ; their enemy and the leader of Duel Academy . Yuya repeats Leo Akaba ' s name and Sylvio protests that Leo is the founder of both LID and the Leo Corporation . Gong is shocked that Declan ' s father is the Professor . Roget observes that the Lancers were all tricked into helping Declan with his dimensional war . Yuya asks what Roget means and Roget claims that the Akabas have started a dimensional war as father and son and are trying to take over all four dimensions ; the father would have his stronghold in the Fusion Dimension and attack the Xyz Dimension , while the son would have his stronghold in the Standard Dimension and attack the Synchro Dimension . The Lancers are the vanguard for that very plan and hindrances like Roget are to be eliminated . He laughs and dubs it a finely written script ; with this Declan will take over as the king of New Domino City and the Synchro Dimension in place of Roget . As Roget laughs madly , Declan adjusts his glasses and he points out that even if he were allied with Leo Akaba , why is Roget taking Zuzu back to the Fusion Dimension ? Roget flinches and Yuya accuses him of lying , stating that he believes in Declan Akaba , who isn ' t like Roget , who only thinks of himself . Declan smiles at Yuya ' s trust , and Yuya tells Roget to give Zuzu back . Roget replies that that will never happen . He will live on , and Zuzu Boyle is his lifeline to ensure that . He smiles creepily at the horrified Zuzu and vows that he will never let her go before he releases her energy bonds and then drags her away . The shimmering walls fade , and Yuya calls Zuzu ' s name and the Lancers head after Roget . Roget and Zuzu descend in an elevator , entering a vast room with a pillar in the middle and only four walkways extending from it in the shape of a cross to support it . Roget muses madly to himself that he shouldn ' t have bothered with Declan and should only have brought Zuzu Boyle with him . Zuzu looks at him in terror as Roget muses that even with just this girl , he ' s sure that the Professor will be happy . He claims that he will still survive . Crow ' s voice comments that he wonders about that , and Roget looks outside the elevator to see Jack and Crow standing there with activated Duel Disks and " Assault Blackwing - Raikiri the Rain Shower " and " Scarlight Red Dragon Archfiend " . Crow tells Roget that they won ' t let him escape and Jack declares that he ' ll have Roget take responsibility for plunging New Domino City into chaos . He orders " Scarlight Red Dragon Archfiend " to get Roget with " Absolute Powerflame " . " Scarlight Red Dragon Archfiend " smashes the elevator with a flaming punch , knocking both Roget and Zuzu out , much to Jack ' s horror . Yuya swings over the chasm of the room on " Performapal Whip Snake " , calling Zuzu ' s name . He lets go and catches her , then he calls " Hippo ! " " Performapal Hip Hippo " runs along the slanted protrusions of the wall and launches itself into the air ; Yuya closes his eyes and braces himself as he lands on the back of " Hip Hippo " . " Hip Hippo " lands and disintegrates , lowering Yuya and Zuzu to the ground . Yuya desperately cries Zuzu ' s name , and as the other Lancers run up he tells Zuzu that she ' s safe now . Zuzu opens her eyes and whispers Yuya ' s name . Yuya hugs her tearfully , sobbing that he finally found Zuzu . Zuzu closes her eyes and rests her chin on Yuya ' s shoulder as she begins to cry as well , while the assembled Lancers , Sora , Jack and Crow smile ( and Gong cries manly tears ) . Even Declan and Shay smile at the reunion and Declan adjusts his glasses . " Damn you … " Roget ' s voice mutters . Shay yells Roget ' s name . Roget climbs back onto the walkway and he asks if they think that he will let it end like this . Sylvio is shocked that Roget survived . Roget gets to his feet , stating that he didn ' t just build this dimensional transporter to return to the Fusion Dimension , but also to transport the entirety of New Domino City across dimensions once he became aware of the attack of Duel Academy . Crow and Jack are shocked at the implications of this , and Roget staggers to the center pillar , claiming that there is no need to run . Since he is going to be destroyed anyway , then he ' ll take the rest of them and New Domino City with him . He lays his hand on a console that reads " CHECK " and it shifts to an " H " symbol displaying the word " CLEAR " . Roget raises his fist and he screams that he ' ll drop everything into the void between dimensions , before slamming his fist down onto the console . Alarms begin to sound , green lights ripple across the wall and surge up at the bottom of the room and electrical arcs begin to crackle over the machine . Roget turns around and he laughs madly , ordering the Lancers to fall as powerful winds begin to swirl in the room . Yuya holds onto Zuzu and the rest of the Lancers brace themselves , but the lighter Riley is swept away and Moon yells his name . Declan runs in and catches Riley , yelling his name . Riley cries , " big brother ! " and Declan smiles at him . Jack roars Roget ' s name and he and Crow send " Scarlight Red Dragon Archfiend " and " Raikiri " in to attack , but the electrical arcs disintegrate the monsters , much to their shock . The green light surges even further , spearing out of the building and into the sky . Outside , the citizens of New Domino City watch in shock ; Chojiro stands with the kids and he asks what that is . The Topsiders and Commons alike observe that a bright light is enveloping the Security Headquarters . The light begins to spread in a manner reminiscent of Zero Reverse and Tony , Damon and Shinji watch ; Shinji observing that the symbol of the Tops ' rule is disappearing . ( in the dub Shinji does not say anything . ) Roget laughs , encouraging everyone to disappear . If they won ' t do as he pleases , then they , this world , and everything should just disappear . A wormhole opens beneath the walkways , and a bolt of electricity strikes the floor , shattering part of the stone and dislodging Roget . With a horrified scream , Jean - Michel Roget falls , disappearing into the wormhole , which closes after he enters it . The light fades and the winds die and Gong asks if everyone is okay . Crow admits that somehow they ' re okay . Shay observes that Roget disappeared and he asks where Roget went . Zuzu ' s energy cuffs dissolve , and Zuzu looks up at Yuya , asking where Roget is . Yuya admits that he doesn ' t know ; Roget got sucked into some kind of hole . But Zuzu is right here , and no - one has taken her away . Zuzu tears up again and she whispers Yuya ' s name . She gently removes Yuya ' s hands , and Yuya smiles and suggests that they go together . Zuzu nods in agreement . And then a whining starts ; the air fills with green light and the winds begin to whip through the room again . Yuya and Zuzu both ask what it is , and Yuya theorizes that the dimensional transfer device might still be active - and Zuzu is ripped from her feet by the winds . Yuya screams Zuzu ' s name and Zuzu reaches futilely for Yuya as she is sucked into another wormhole . Yuya screams Zuzu ' s name again , but then he is pulled into the air as well . Gong grabs Yuya ' s hand , but even he is beginning to lose his balance ; Shay tries to hold Gong back and Sylvio grabs Shay too , but it ' s not enough and all four of them are sucked into the portal . The light fades and the Akabas can only stare in shock . Crow and Jack walk up and Crow asks what just happened . Declan explains that it was most likely caused by Roget ' s dimensional travel device going haywire ; a wormhole . Jack asks what a wormhole is , and Sora explains that it connects dimensions . Declan confirms it ; but he explains that it doesn ' t move things over to a specified route . Riley asks where Yuya and the others are and Declan admits that they are most likely in another dimension , but the methods to determine which one do not exist . The group regains consciousness in the ruins of a destroyed city and a smoky sky . Sylvio asks in shock if New Domino City was destroyed , but Shay grimly tells him that it wasn ' t - this is Heartland , in the Xyz Dimension , his home . Featured Duel : Declan Akaba vs . Jean - Michel Roget . Turn 2 : Declan Declan activate s " Forbidden Dark Contract with the Swamp King " , which lets him Special Summon a Level 5 or higher Fiend - Type monster from his hand , with its effects negate d . It cannot attack and is destroy ed during the End Phase . Declan Special Summons " D / D / D Chaos King Apocalyspe " ( 2700 / 2000 ) via this effect . Since he used the first effect of " Forbidden Dark Contract " to Special Summon a monster , Declan activates its other effect , which allows him to use the Special Summoned monster as Fusion Material for the Fusion Summon of a Fiend - Type monster , using monsters in his hand or field ; however , he will take 2000 damage during each of his Standby Phase s . He fuses " Apocalypse " with the " D / D Lamia " in his hand to Fusion Summon " D / D / D Dragonbane King Beowulf " ( 3000 / 2500 ) in Attack Position . Declan activates the effect of " D / D Lamia " , which allows him to Special Summon it from the Graveyard by send ing 1 " D / D " or " Dark Contract " card from his hand or field to the Graveyard , but it is banish ed when it leaves the field . He sends " Forbidden Dark Contract " to Special Summon " Lamia " ( 100 / 1900 ) in Attack Position . Declan activates " D / D Savant Thomas " ( 6 ) and " D / D Savant Nikola " ( 8 ) in his Pendulum Zone s . Declan Pendulum Summon s " Apocalypse " ( 2700 / 2000 ) from his Extra Deck in Attack Position . He tunes the Level 7 " Apocalypse " with the Level 1 Tuner monster " Lamia " to Synchro Summon " D / D / D Cursed King Siegfried " ( 2800 / 2200 ) in Attack Position . He activates the effect of " Siegfried " , which allows him to negate the effects of a Spell / Trap Card on the field until the next Standby Phase . Declan negates " Ancient Gear Magic Shield " ( " Ancient Gear Howitzer " : 3000 → 1800 ) . " Beowulf " attack s and destroy s " Ancient Gear Howitzer " , with the effect of " Beowulf " inflicting piercing battle damage ( Roget : 4000 → 2800 LP ) . " Siegfried " attacks directly ( Roget : 2800 → 0 LP ) . " Roget " re - joins the Duel , taking the 2000 LP intrusion penalty ( Jean : 4000 → 2000 ) . Declan activates the Pendulum Effect of " Thomas " , which allows him to add a face - up Pendulum Monster from his Extra Deck to his hand . He adds " Apocalypse " . Declan Set s a card . Turn 3 : Roget Declan activates the other effect of " Apocalypse " , which lets him Special Summon it ( 2700 / 2000 ) from his hand by destroying two face - up Spell / Trap Cards he controls . He destroys " Nikola " and " Thomas " . Since " Nikola " was destroyed while it was in the Pendulum Zone , its effect activates , allowing Declan to return a " D / D / D " monster he controls to his hand , and then place up to two face - up " D / D " Pendulum Monsters from his Extra Deck to his Pendulum Zone , but their Pendulum Effects cannot be activated this turn . " Apocalypse " returns to Declan ' s hand and " Thomas " and " Nikola " are placed in his Pendulum Zones . Since a " D / D " Pendulum Monster was returned to his hand , Declan activates his face - down " Dark Contract with the Swinging Abyss " , which allows him to inflict damage equal to the DEF of one " D / D " Pendulum Monster that was returned to his hand ( Roget : 2000 → 0 LP ) . " Roget " rejoins the Duel , taking the 2000 LP intrusion penalty ( Roget : 4000 → 2000 ) . Since the combined effects of " Apocalypse " , " Nikola " , and " Swinging Abyss " form a controlled loop , Roget would end up being defeated each time he reentered the Duel . Knowing that he cannot win , Roget terminates the Duel and flees . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .