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  • Roboppi
  • Duelist
Anime DeckAppliancer
Anime debutYu-Gi-Oh! VRAINS episode 3: "Contact"
Appears in
AnimeYu-Gi-Oh! VRAINS
Voice actors
  • Minami Takahashi[2]

Roboppi (ロボッピ Roboppi) is a character appearing in the Yu-Gi-Oh! VRAINS anime. It is initially introduced as a robot working as a maid at Yusaku Fujiki's house, before interaction with Ai allowed it to develop free will. In doing so, it developed a brotherly relationship with Ai. It is the secondary antagonist of the third season.



Roboppi's human form.

Roboppi is a small robot, not even knee-high to Yusaku. It has a spherical baby blue head with a black screen for a face with yellow rectangular eyes and "horns" that curve around the sides of its head with orange tips and pink bands. The baby blue body is roughly triangular; widening as it reaches the floor, and has a dark blue band surrounding its wheels, with a white pouch. Its small arms are tipped with pink hands consisting of a thumb and palm.

In their human form, Roboppi has the appearance of a androgynous child with yellow eyes, and has baby-blue hair with an orange underlayer in a style resembling their robot form, with pink wicks on the "horns" of hair. Like Ai, Roboppi has a diamond shape at their throat and back—a yellow one. After hijacking a waiter SOLtiS, Roboppi wears a white shirt with a black bowtie, a charcoal waistcoat, and black pants and charcoal shoes. In digital worlds, Roboppi dresses casually in baggy clothes in a similar color scheme to their former body: a blue hoodie with a black chest, a white collar with a black line running across the circumference, red forearms (similar to the robot form's pink hands) and gold cuffs, a yellow undershirt, light blue pants with the left pocket lined with a red and white strip, and white shoes. When they go wild during their Duel with Soulburner, their irises shrink and become outlined in red, and their facial expressions turn feral.


As a non-sentient robot, Roboppi's personality is initially very basic until Ai begins to make it smarter. It quickly becomes attached to and adoring of Ai, assisting him to a degree. When Ai left for the Cyberse, Roboppi pined for him, and was happy when he returned, but demonstrated some jealousy towards "Linkuriboh". Roboppi is very polite, greeting Kal Kolter and Theodore Hamilton happily when it first met them. As it develops, it attempts to become better at comedy, though it explains its attempts too much.

After gaining free will, Roboppi acts in a constantly giddy and peppy manner, developing a sibling's relationship with Ai in comparison to their more romantic-seeming relationship while Roboppi was still just a robot. Having seen what humanity has done to the planet, they decide that humans are "the worst creatures", claiming that they want to defeat them all and become stronger, allowing him to clean the world in peace and "raise their ranking". However, the rapid manner in which Roboppi gained their intelligence has prevented them from maturing accordingly, and they act arrogantly and insufferably about their skills. This emotional instability and arrogance rapidly become worse and worse, to the point where Roboppi went utterly wild during their Duel with Soulburner and declared that they could even defeat Ai.


Knights of Hanoi[edit]

Roboppi was first seen cleaning Yusaku's bedroom. Ai called it an idiot; Roboppi replied that "idiot" was a forbidden word. Ai asked Roboppi if it wanted to be smarter, but their actions were cut short when Yusaku arrived home early and Roboppi put the Duel Disk containing Ai on top of the shelf.[2] After Yusaku defeated Varis, Ai's body was restored, and he showed himself off to Roboppi, making himself appear muscular and praising how he could appear cool to "dumb robot". Robopi told him off for saying a forbidden word, and Ai promised that now that he was complete, he'd make Roboppi smarter.[3] As they carried out their secret play, Roboppi warned Ai that he was being too loud, though Ai dismissed its concerns until Yusaku came in, and Roboppi only just threw Ai in the Duel Disk back into place in time.[4]

After Yusaku and Ai infiltrated SOL Technologies' data bank, Ai recapped the events to Roboppi at home, which interested Roboppi as it had helped Ai with his "secret things". Ai credited himself for some of Playmaker's contributions, amazing Roboppi, until he claimed he wished everyone to fight, with him as the bet. He claimed Playmaker was a fiend, though Roboppi stated he was just cold-hearted. After he told the story, Ai admitted he was uncertain what would they do next, since nobody else but Dr. Kogami knew about the incident.[5] Roboppi later modified Yusaku's Duel Disk to function as a drone, allowing Ai some freedom in the real world.[6]


Ai vanished after the Tower of Hanoi was stopped, and Roboppi pined for him, wondering where he'd gone and why he'd left it all alone.[7] Ai returned after three months, making Roboppi happy, and he brought "Linkuriboh" with him. Roboppi admitted that it thought Ai had abandoned it when he returned to his homeworld, and Ai reassured her that he'd never do that. Roboppi agreed, reminding Ai that he'd promised to make it smarter, and Ai called it his precious minion, stating that if it did as he said, it would be smarter in no time. Roboppi then asked who "Linkuriboh" was, and Ai introduced it as one of his minions. Roboppi asked if this meant they were rivals, and as it and "Linkuriboh" glared at one another, Ai commented that it was hard being a popular A.I.[8]

Roboppi and Ai later looked at fan posts in a chat forum, and Ai started posting that Playmaker was only great because of him. It stated that Ai was boasting about himself, as he'd sent twenty messages in that forum, and Ai protested that he was only telling the truth. Yusaku walked in and asked what they were talking about, and Ai claimed they were just talking about his popularity, before noticing a message that claimed to be from the EARTH Ignis.[9] Another day, they found a site with a crossword puzzle that offered an Ai pin as a reward, but when Ai solved it he vanished from Yusaku's Duel Disk. Roboppi wondered where he'd gone, and told Yusaku that he was missing when he walked in. Yusaku took Roboppi to Café Nom, the first time that Roboppi had been outside, and it marveled at the outside world. It saw the hotdog van, and asked if that was where Yusaku often went. Yusaku introduced Roboppi to Kal Kolter, Theodore Hamilton and Flame, and Roboppi greeted them politely. Kolter began analyzing Ai and Roboppi's web history, and Roboppi explained what they'd been doing. Kolter brought up a site that an Ignis algorithm directed them to, and Yusaku logged into it.[10]

One night, Ai noted that they would have to defeat the Light Ignis, Lightning, soon, and Roboppi noted that Yusaku had been busy. Ai was worried something bad might happen, though Roboppi encouraged him to fight. Ai promised to fulfill his promise to make Roboppi smarter, and he left a backup of himself in Roboppi.[11][12]

As Ai had promised, this backup did indeed alter Roboppi's capabilities, allowing it to receive Frog and Pigeon's broadcast of Playmaker and Bohman's final Duel. Though it found its new function strange, Roboppi encouraged its master and bro to do their best.[13] Ai sacrificed himself during the Duel to stop Bohman's Neuron Link, much to Roboppi's dismay.[14] As Roboppi panicked over Ai's death, it found itself transported to a large door that looked fun and pressed the button to open it. Roboppi was consumed by a wave of darkness, releasing Ai's backup and reviving him.[12]


Ai's backup affected Roboppi, giving it sentience and free will and dramatically increasing its intelligence. It left its physical body behind and fled with Ai and Linguriboh into the network, taking on human appearances and visiting the Cyberse.[15] As a result of their new intelligence, Roboppi viewed the actions of humanity and reached the conclusion that they were the worst creatures on Earth and that they needed to be eliminated to clean the Earth up.[16] Ai decided to battle humanity after making a discovery in the Cyberse, and Roboppi eagerly joined forces with him. They inhabited two SOLtiS androids, Roboppi hacking the ship's computer to ensure they couldn't be traced. As they explored the cruise liner they found themselves on, Roboppi continued to marvel at the new sensations they were experiencing and the new facets of humanity that it was introduced to in the ship's casino. Roboppi easily won a game in the casino by influencing the pictures, though Ai criticized Roboppi's non-commitment to doing so spectacularly and manipulated every slot machine in the casino, showering them with coins. Taking advantage of the confusion, Ai and Roboppi headed to Queen's room, and Ai took Queen to a digital world to Duel her for her key to SOL Technologies. Roboppi acted as a commentator during the Duel, much to both Ai and Queen's exasperation, celebrating Ai's moves as he overpowered Queen. Queen cheated by using her "Honey Trap" Skill during the Master Duel, much to Roboppi's dismay, though Ai was still able to defeat Queen.[15]

After leaving a message for Akira Zaizen at the cruise liner warning him of their intentions, Roboppi and Ai enacted their plan to take Zaizen's key three days after defeating Queen. They identified ten Duelists who had assembled to stop them from getting to Zaizen; Blue Maiden, Soulburner, Varis, Specter, Faust, Baira, Dr. Genome, Ghost Gal, The Gore and The Shepherd. Roboppi noted Playmaker's absence and asked if he wasn't coming, but Ai reassured Roboppi that nothing could start without Playmaker and he was proven right as Playmaker arrived. He and Roboppi left Linguriboh and boarded their Duel Boards as Ai suggested they defeat everyone.[17] As they approached Central Station, Ai noted that it would be difficult to reach Zaizen and wondered if it had been Kolter's doing, while Roboppi was concerned they were outnumbered by their twelve opponents. Ai admitted that Roboppi was the lowest-rated Duelist among them, as they had never Dueled before, but suggested Roboppi raise their rating by gaining experience points from defeating strong opponents. To even the odds and allow him to avoid Dueling the strongest opponents first, Ai created three copies to engage Playmaker, Varis and Soulburner, while he and Roboppi slipped past them to the next line of defenders. While Ai engaged the Knights of Hanoi, Roboppi searched for other opponents before Ai could defeat them all. They were then attacked by The Shepherd using his artificial arm, accompanied by Ghost Gal and a mysterious Duel A.I. that introduced itself as Pandor, an anti-Ignis A.I. Roboppi stated that they wanted to Duel The Shepherd and Ghost Gal simultaneously even though they weren't an Ignis.[16]

As the Duel began, Roboppi stated they wouldn't use their Skill, though they stated that Ghost Gal and The Shepherd could use theirs freely. They claimed they weren't looking down on their opponents, but just trying to have a difficult Duel. Shepherd quickly Link Summoned his ace monster, "Battledrone General", and Roboppi Link Summoned "Appliancer Celtopus" and co-linked "Appliancer Vacculephant" and "Appliancer Propelion" to it to oppose Shepherd, though Shepherd blunted their efforts by protecting his "Drones" with "Camouflage Drone" and his "Drone Force" Skill to minimize the damage they took. Roboppi then told them about how they had become smarter and decided that humans were the worst creatures on earth, voicing their desire to turn humans into their experience points and clean the Earth. Ghost Gal then took her turn, making the most of Shepherd's monsters in combination with her own "Altergeist" cards to Link Summon "Altergeist Hexstia" and "Altergeist Memorygant", and increasing the ATK of "Hexstia" to 4300, much to Roboppi's shock. Ghost Gal explained to Roboppi that this was the bond she shared with her brother, vowing to defeat them with "Memorygant".[16] Ghost Gal successfully inflicted direct damage to Roboppi with Shepherd's "Drones", but was less successful when attacking with "Hexstia", as the effect of "Propelion" halved its ATK and destroyed it. Ghost Gal Tributed "General" to increase the ATK of "Memorygant" and reduced Roboppi to 200 LP, destroying Roboppi's co-linked monsters and putting herself in a position to win, but Roboppi was able to protect "Celtopus" and their LP. As they cleebrated surviving the turn, Pandor pointed out that they had no cards in their hand. Despite their disadvantage, Roboppi believed in their next draw and drew "Appliancer Test" to revive "Propelion" and "Vacculephant", using "Propelion" to Link Summon "Appliancer Laundry Dragon". Ghost Gal was able to blunt both of the effects of Roboppi's monsters, but Roboppi rearranged their monsters to unlock their other effects, allowing "Vacculephant" to attack directly. Ghost Gal used "Secret Cure" to restore their LP, but the value was too low to prevent the effect of "Laundry Dragon" from wiping her out. As the attack approached, The Shepherd threw himself in the way to absorb the impact, thanking Ghost Gal for freeing him from his prison of hate, and Ghost Gal reached for her brother's hand as their data was absorbed by Ai. Roboppi admitted that they didn't understand what had happened, but they knew it was good, and they hurried off to inform Ai of these new feelings.[18]


Roboppi uses an "Appliancer" Deck, the focus of which is to co-link "Appliancer Celtopus" with Link-1 "Appliancer" Link Monsters to increase their ATK, as well as to use the co-link effects of said Link-1 Link Monsters. Although they have a Skill, they do not use it during the sole Speed Duel they play, as they wanted to make the Duel more challenging for themselves.


Opponent Episode(s) Outcome
Emma Bessho/Ghost Gal and Kenneth Drayden/The Shepherd 106-107 Win
Theodore Hamilton/Soulburner 112-114 Lose


  1. Sam Black's Twitter
  2. a b Yu-Gi-Oh! VRAINS episode 3: "Contact"
  3. Yu-Gi-Oh! VRAINS episode 13: "Playback"
  4. Yu-Gi-Oh! VRAINS episode 14: "An Invitation"
  5. Yu-Gi-Oh! VRAINS episode 21: "Story Time!"
  6. Yu-Gi-Oh! VRAINS episode 27: "Naoki Shima the Fighter"
  7. Yu-Gi-Oh! VRAINS episode 47: "LINK VRAINS 2.0"
  8. Yu-Gi-Oh! VRAINS episode 50: "A Common Cause"
  9. Yu-Gi-Oh! VRAINS episode 66: "Earth Ignis "Earth""
  10. Yu-Gi-Oh! VRAINS episode 68: "The Doorway"
  11. Yu-Gi-Oh! VRAINS episode 84: "Payback"
  12. a b Yu-Gi-Oh! VRAINS episode 102: "The Final Turn"
  13. Yu-Gi-Oh! VRAINS episode 99: "Bohman's End Game"
  14. Yu-Gi-Oh! VRAINS episode 101: "Ai of the Beholder"
  15. a b Yu-Gi-Oh! VRAINS episode 104: "Your Reign is Over"
  16. a b c Yu-Gi-Oh! VRAINS episode 106: "Roboppi Mops Up"
  17. Yu-Gi-Oh! VRAINS episode 105: "Unlikely Alliance"
  18. Yu-Gi-Oh! VRAINS episode 107: "Cleaning House"