Sanzyudai Yuki is a character based on Jaden Yuki (who is known as Judai Yuki in Japan) who appears in the Tag Force series.
In Yu-Gi-Oh! GX Tag Force, Sanzyudai appears in the cafeteria of the Slifer Red dorm after the player has completed the game with three of the seven originally available characters. He asks for the player's aide in his, Senjome, and Sironos' aide in their feud against Emperor.Umiuma and the rest of UmiumaCorp.
In Yu-Gi-Oh! GX Tag Force, Sanzyudai plays a Burn Deck called Atrocious Rock Deck.