Meanwhile Tea and Tristin were barely keeping the guards out. It would only be a matter of time till they let the guards in.
As Yugi, Joey, and Mai flew, Duel Monsters began to attack them. Yugi summoned his Dark Magician, Joey summoned Giltia the Dark Knight, and Mai summoned Harpie Lady. One duel monster was about to attack Yugi, but Aero saved him, sacraficing his own life. The Dark Magician destroyed the monster that had attacked Yugi. Since Aero was gone, the Millenium Puzzle activated and Yami Yugi took over. Yugi then used Swords of Revealing Light to stop the attack. As they went through the magical barrier and reached the castle a Salamandra attacked them, but Yugi and his friends escaped on Winged Dragon, Guardian of the Fortress #2.
Meanwhile inside the castle, the Witty Phantom appeared again with Mokuba. He showed Mokuba to Seto and told Seto that Mokuba's disguise didn't fool them. Mokuba then summoned Swordstalker and freed Seto. Mokuba gave Seto's deck back to him. Seto then summoned his Blue-Eyes White Dragon and destroyed the Witty Phantom. They left the room where they saw dozens of Armed Ninjas. Seto then saw the Dragon Capture Jar that had taken his first Blue-Eyes. Seto countered with Trap Master and his first Blue-Eyes was returned to him. The two Blue-Eyes then destroyed all the Armed Nijas. At this time, Mokuba explained that Yugi and his friends had come too. Seto was furious, since he all ready owed Yugi for saving him from Pegasus.
Meanwhile Yugi, Joey and Mai were being attacked by hordes of insects. Joey's Giltia was destroyed by a Man-Eater Bug. Yugi used Mirror Force and destroyed all the insects. Unfortunately this caused a fire which awoke three Great Moths. Yugi then summoned Kuriboh and Catapult Turtle. He launched Kuriboh and then used Multiply, multiplying Kuriboh and destroyed the three Great Moths.
They then entered a room where they met Kaiba and Mokuba. They room suddenly disappeared and it seemed they were inside a computer. The voices of he Big Five filled the room. Seto Kaiba told them the Big Five had lost, but the Big Five had reprogarmmed the game and summoned the Mythic Dragon(5000/4000). Mai summoned Harpie Lady, but the Big Five told her that they only could attack with dragons, thanks to their Dragon Seal effect. Seto summoned his Blue-Eyes White Dragon, Joey summoned Red-Eyes Black Dragon, Yugi summoned Curse of Dragon, and Mai summoned Harpie's Pet Dragon. All four dragons attacked the Mythic Dragon, but the Mythic Dragon blocked the attacks with its own attack. Then the Mythic Dragon attacked Mokuba, but Joey used his Red-Eyes to protect him. Joey's Red-Eyes was destroyed(Joey's LP:0000). Joey then disappeared. Mai attacked with her Harpie's Pet Dragon again, but it was overwhelmed and destroyed(Mai's LP:0000). Mai disappeared too. Yugi then used the Black Luster Ritual and sacrficed Gaia the Fierce Knight and Curse of Dragon to summon the Black Luster Soldier. Unfortunately Black Luster Soldier was unable to attack. The Mythic Dragon then attacked Seto Kaiba directly, but Mokuba shoved Seto out of the way. Mokuba then disappeared. Kaiba then listened to Yugi and summoned his Blue-Eyes Ultimate Dragon. Yugi then used Polymerization and fused Kaiba's Blue-Eyes Ultimate with his Black Luster Soldier to create Supreme Dragon Master Knight(5000/4000). Supreme Dragon Master Knight gained attack power for every dragon that ever was played(9000/5000), so it easily destroyed the Mythic Dragon.
Seto and Yugi fell and found themselves in front of a crowd. Princess Adina was there and thanked both of them for their courage. Seto told her that they he had gained nothing and lost his brother. Princess Adina then turned into the Mystical Elf and revived their fallen friends. Then Yugi, Seto, Joey, Mai, and Mokuba left the game. Before they left the game, Joey asked Seto for a thank you, but Seto told him that he didn't ask for their help. Seto then thanked Yugi.
As everyone returned to the real world, Kemo and the other guards broke into the lab. Luckily, Yugi and his friends woke up at this time. The guards realised that Seto would be awake too, so they ran away to help the Big Five. Mai then came from the next room. Mokuba then left and thanked them.