Pegasus is about to say he would have gotten away with it, if not for those meddling kids
Bakura says "cards where we're duling we don't need cards" like Doc Brown's line "where we're going we don't need roads"
Yami: "Hey Pegasus, remember how I said I was going to kill you last?"
Yami (to Shadi): "By the way, have you ever seen 'Labyrinth'? "
Kaiba: "Come on, Mokuba, we're going to have our own tournament. With blackjack. And hookers. In fact, forget the tournament."
Yugi tells the Dark Magician he is not a gun
A character talks and acts like Borat
Yugi compares the labyrinth he finds himself in to the one in this episode