|Video game debut|
Gellenduo is a character version of the card, "Gellenduo".
Gellenduo appears in the video game, Yu-Gi-Oh! World Championship 2008. She first appears as the delivery person of the card "Nova Summoner" and is meant to give the card to Airknight Parshath. When the player encounters her, she will say that she lost the card and asks for the player's help. When the player encounters Airknight Parshath at the courthouse, he is wondering what happened to Gellenduo, as they were supposed to deliver the card to him. By giving him the card, he believes that the player stole the card, leading to the "Nova Summoner Card Robbery Case". Voltanis the Adjudicator, acting as the judge, asks the player if they stole the card. Despite refusing to say yes, he convicts the player as guilty. After dueling him he still finds the player guilty, but Gellenduo arrives and proves their innocence by saying they asked for their help. Voltanis later changes his verdict to not guilty and Airknight Parshath forgives the player, as he misunderstood what they were doing with the card. Gellenduo apologizes to the player, as they didn't know that this would happen.