"Portal of Doom", known as "Galaxy-Eyes Sealed!? A Cosmic-Class Numbers Appears!" in the Japanese version, is the fifty-fifth episode of the Yu-Gi-Oh! ZEXAL anime. It first aired in Japan on May 14, 2012, and in the United States on March 30, 2013.
Yuma reaches the Space Field where Kite is Dueling with his former teacher, Quinton. After Quinton Summons "Number 9: Dyson Sphere", both Yuma and Kite learn the betrayal that Dr. Faker committed against Kazuma. Thus the origins of Vetrix is revealed in the end.
Quinton and Kite speed towards the Space Duel Field. Quinton says that Kite has finally come, while Kite says "Chris", before correcting himself and calling him Quinton instead. Kite recalls watching Quinton leave years ago, and wonders why he did. At the Duel Coaster Stadium, Bronk wonders what's going on, as they haven't shown any Duels in a while. He wonders if Yuma is alright and Caswell adds that something's not right here. Orbital 7 suddenly speeds through the air, flying towards the entrance to the Duel Coaster's underground section. He says he can't wait for Kite anymore - he needs to go to him now, even if Kite will turn him to scrap for following.
Yuma speeds along on his Duel Coaster, having no clue where's he going. Tori tells him to slow down, but Yuma says he has to find an opponent. Astral says if he isn't careful and Tori finishes by saying they'll hit a trap again. There's an explosion overhead and Yuma wonders if someone else hit a trap. Orbital 7 comes flying through the air out of the explosion and lands on the coaster between Yuma and Tori. He calls them "the crazy duo". Tori asks if he's alright, and Orbital calls her "the scary girl". Tori angrily grabs him and threatens to throw him off the coaster (in the dub, Tori instead threatens to rearrange Orbital's wiring). He says he needs to get to Kite and Yuma remembers Dextra falling to Vetrix for Kite's sake. Yuma says he has something to tell Kite and tells Orbital to lead them to him. Orbital agrees.
Kite and Quinton have arrived at the Space Field and both appear on the flat surface of the space station's roof. Quinton says he knew the day where they would fight would come. Quinton remembers watching Hart and thinks the day he found out the truth, his heart became surrounded by hatred and revenge. Kite says he will make Quinton pay for hurting Hart. They begin the Duel, with Quinton saying he'll take the first turn. He Normal Summons "Planet Pathfinder" and Special Summons "Solar Wind Jammer" from his hand via its own effect by halving its ATK. He activates "Tannhauser Gate" and explains that it lets him change the Levels of two his monsters to their combined total. He changes the Level 4 "Planet Pathfinder" and the Level 5 "Solar Wind Jammer" to Level 9. Kite says he has two Level 9 monsters. Quinton overlays them to Xyz Summon "Number 9: Dyson Sphere" in Attack Position. The monster fails to appear though and Kite asks where it is. Quinton ignores him and explains the effect of the Duel Field, "Space Field". When a player Xyz Summons, they draw a card. Quinton Sets a card and ends his turn, with Kite again questioning where his monster is.
Quinton asks him what's wrong and tells him it's his turn. Kite thinks that even if the monster can't be seen, its still there as a Summon was declared. He Normal Summons "Photon Delta Wing". He orders it to attack with "Photon Missile". The missiles miss Quinton and are absorbed by a black hole behind him. Quinton apologizes, saying his attacks can't reach him. He asks if that will be all and begins his turn.
Quinton orders "Dyson Sphere" to attack "Delta Wing". A white hole appears behind him, which blasts "Delta Wing" with spears of light, destroying it and bringing Kite down to 3000 Life Points. Kite asks what's going on here and Quinton says he knew Kite wouldn't understand - Quinton's Dueling has gone far beyond his imagination. Yuma's Duel Coaster appears in the air and Tori asks if this is the Space Field, which Astral confirms. Orbital says he's confirmed the signal from Kite's D-Pad and they fly towards the space station. Tori asks why he's speeding up and Yuma says the coaster's controls aren't responding to him. They crash between Kite and Quinton, with Tori calling Yuma an idiot and Orbital asking Kite if he's alright.
Yuma gets up and says he has something he needs to tell Kite. He explains that Dextra was defeated by Vetrix. Kite's eyes widen and Yuma continues that Dextra fought Vetrix for him. Kite responds that he doesn't care. Yuma grabs Kite by the collar and Quinton calls out to Yuma. He calls him Kazuma's son and says that everyone has now gathered here - it must be fate. Yuma says he has something to ask Quinton - where is his father? Quinton says he'll tell them everyone he knows before they continue the Duel. Kite says he has no time to listen to such a story and asks to continue their Duel. Quinton says the story is relevant to him too and that the Duel can wait. He asks if Kite didn't wonder why Quinton's family suddenly appeared in the World Duel Carnival, why they targeted Hart and why they were trying to take revenge against their father - Dr. Faker. Yuma is surprised to hear that Faker is Kite's father and wishes to know why they want revenge.
Quinton explains that five years earlier, Kite's father, Faker, and Quinton's own father, Byron Arclight, were conducting research about opening the doorway to other dimensions. They worked from Heartland Tower. Faker says they found dimensional distortions all around the world, but he can't pinpoint their exact location. He angrily slams his hands onto his keyboard. Byron appears behind him with a drink and tells him drink it and calm down a bit. Faker turns and knocks the drink from Byron's hands, with the mug falling to the floor and shattering. He says he has no time to do that - he must find the door to the other dimensions. Byron tells him there is one other person attempting to find that doorway. Quinton is standing at another console and he tells him to bring up that person's image, calling Quinton "Chris". Byron says he's an interesting man - an adventurer named Kazuma Tsukumo. Kazuma sits on a rock in the desert, watching the sunset. He says it's peaceful and that no one should bother him here. A helicopter appears overhead and he guesses he was wrong.
Kazuma enters Heartland Tower with Chris and complements the amazing equipment they have. Byron thanks him for coming so quickly and shakes his hand, introducing himself as Byron Arclight. Kazuma says they have a gravity wave map and an electromagnetic wave map, both very impressive. Faker yells he has no time to be flattered - he analyzed all the distortions and still can't find it - something has to be missing. Byron asks for Kazuma's opinion about the door's location. Kazuma steps forward and says finding the door will change mankind's history and make those that discover it rich and famous. Faker says he has no need for either of those things, he simply must find the door. Kazuma smiles and says he feels relieved to hear that. Kazuma says what interests him about the door is its potential for a real adventure. Byron asks if that was a test, then. Faker tells Kazuma to look at the electromagnetic wave map. He explains that after the appearance of the doorway, he found odd phenomenons in twenty-one places around the world. He says he was positive he could determine the next place the door would appear if he analyzed those places. Kazuma calls it the twenty-first dimensional equation and Faker says there is only one more step. Kazuma says he's missing something. Faker says that's impossible, but Kazuma clarifies that there are not only twenty-one locations. He says that by just sitting around in a lab, they've missed some things. He reveals there are twenty-three locations, meaning there are two more. Kazuma says the true answer is the twenty-third dimensional equation.
Quinton says that by analyzing that new data, they pinpointed the location and headed there. Faker tells the rest to stay behind, just he, Byron and Kazuma will go. Byron tells Chris it will be fine. In the present, Quinton says that what he saw ends there. From here on is the story his father told him. Guided by Kazuma, they climbed down into the valley. While making camp one night, Byron asks if they'll really make it and Kazuma responds by explaining "kattobingu". He shows Byron a picture of his family. Kazuma says his son loves Dueling and Byron says his own son is the same way and says that he has three sons, also telling him that Faker has two. Kazuma asks just what is it that Faker is after. Byron says he doesn't know, but he does know that Faker is a true genius. He says that no matter what the reason is, he wants to help with Faker's work. Kazuma says that Faker must be happy to have a friend like him. In his tent, Faker types on his console. He translates some runes and reads them saying that "by offering two souls, a great doorway will appear" (in the dub, he says "Deliver two souls for mysteries untold"). He smiles. Q
Quinton explains that after three days, they finally arrived. Byron asks if its ruins of an ancient civilization and Faker sees three markings on the ground. He says this is the place for sure. He steps on a floor slab with an inscription on it. The inscription glows red and the door slams shut. A giant slab falls from the ceiling. Kazuma jumps, pushing Faker out of the way in time. Kazuma tells Byron not to move and says that traps must have been set to deter intruders. Later, they descend some stairs, with Kazuma saying that up to now has been child's play. They must use all of their bravery and knowledge from this point on. Byron asks if Faker is alright, with Faker saying he's fine. He lags behind the other two a bit though.
Bryon and Kazuma reach the very top of a set of stairs, which just leads to the top of a pillar. Kazuma says its a dead-end, but there must be something here. The runes below them glow red and electricity pulses through their bodies as they turn red as well. Below them, Faker says that the moment has come. He says he feels sorry for them and Byron asks what's he's doing. Faker explains that the runes below them say "by offering two souls, a great door will appear ("Deliver two souls for mysteries untold" in the dub). Byron asks if he's trying to use them as sacrifices and Faker says he must find the door at any cost. Kazuma asks if Byron wasn't his friend. Faker says that friends are useless. The stairs collapse and Faker says that if Byron is his friend, he should be happy to to be sacrificed and that it's the best an average person like him could hope for. The pillar collapses and they fall towards a portal. Kazuma barely hangs on and grabs Byron's hand, yelling "kattobingu". Byron tells him to let go of him, as if he doesn't, Kazuma will fall too. Kazuma says he's heard it said that if Duel someone, you become friends - and to him adventuring is his Dueling. Faker tells them to disappear and the piece of rock that Kazuma is hanging on to falls. They both fall towards the portal, with Byron yelling he won't forget this.
In the present, Yuma says that was his father's last adventure then. Astral compares the sacrifice to Xyz Summoning. Quinton says his own father returned though. He has wandered through the other world, with only revenge on his mind. Because of that, he had changed. His father is currently known as Vetrix. Everyone is surprised. Quinton says that the true culprit is Faker - and Quinton will make him pay. Kite says he has only Hart, he has no interest in what Faker does. He says they'll continue the Duel now and tells Yuma to move out of the way. Kite Special Summons "Photon Thrasher" in Attack Position, explaining he can do so when he controls no monsters. He Normal Summons "Photon Pirate" and explains that it can banish a "Photon" monster in his Graveyard to increase its ATK by 1000 until the End Phase. He banishes "Delta Wing" to increase the ATK of "Pirate" to 2000. Quinton says there are two monsters with 2000 or more ATK and Yuma says Kite's ace card is coming.
Kite Tributes "Thrasher" and "Pirate" to Tribute Summon "Galaxy-Eyes Photon Dragon" in Attack Position. Kite remembers that last turn, he took 1000 damage when "Delta Wing" was destroyed by battle with Quinton's "Dyson Sphere". So that means that Quinton's "Number 9" must have 2800 ATK, since "Delta Wing" had 1800 (1800 ATK on "Delta Wing" + 1000 Battle Damage = 2800 ATK on "Dyson Sphere"). He tells "Galaxy-Eyes" to attack with "Photon Stream of Destruction", but Quinton says he's foolish. The blast goes through Quinton and he takes no damage. He says he'll show Kite his "Number" now. Bright light streams out from the sun, blinding everyone. A black object appears from behind the sun, which is quickly engulfed by a tube in the center of the object. Two small satellites float around it. Quinton says its the gigantic monster that even consumes the sun - "Number 9: Dyson Sphere". Quinton claims that no matter what the monster is, "Dyson Sphere" cannot be defeated.
Featured Duel: Kite Tenjo vs. Quinton
This Duel takes place at a Duel Field, "Space Field". It is a treated as a face-up Field Spell Card. Its effect allows players to draw a card each time they perform an Xyz Summon. The Duelists begin with the amount of Life Points they had at the end of the Duel Coaster. In this case, both players have 4000 (Quinton formerly had 4600 Life Points, although it is possible he lost 600 from running into a Trap Card(s) on the Duel Coaster).
Turn 1: Quinton
Turn 2: Kite
Kite draws. He then Normal Summons "Photon Delta Wing" (4/1800/900) in Attack Position. "Photon Delta Wing" attacks "Dyson Sphere", but Quinton activates the second effect of "Dyson Sphere" to negate the attack.
Turn 3: Quinton
Quinton draws. At this point, "Dyson Sphere" and its stats are revealed. "Dyson Sphere" attacks and destroys "Photon Delta Wing" (Kite: 4000 → 3000 LP).
Turn 4: Kite
Kite draws. He then Special Summons "Photon Thrasher" (4/2100/0) from his hand in Attack Position via its own effect as he controls no monsters. Kite Normal Summons "Photon Pirate" (3/1000/1000) in Attack Position. Kite activates the effect of "Photon Pirate" to banish "Photon Delta Wing" and increase the ATK of "Photon Pirate" by 1000 until the End Phase ("Photon Pirate": 1000 → 2000 ATK). Kite Tributes "Photon Thrasher" and "Photon Pirate" in order to Special Summon "Galaxy-Eyes Photon Dragon" (8/3000/2500) from his hand in Attack Position via its own effect (as the Tributed monsters had at least 2000 ATK). "Galaxy-Eyes Photon Dragon" attacks "Dyson Sphere", but Quinton activates the second effect of "Dyson Sphere" to negate the attack.
Duel continues in the next episode.
The following cards appeared in this episode. Cards in italics debuted here.