100. Isolated in Cyber Space (2)

As Yugi struggles to make heads or tails of the Deck Master System, Big 1 continuously uses his Deck Master ability to send all of Yugi’s attacks right back at him! How can Yugi defeat an opponent when all his attacks take away his very own life points? Meanwhile, Kaiba and Mokuba confront painful visions of their miserable childhood, but within the heartache may lurk the key to Noa’s true intentions...