Duel Identity, Part II - S1-E30
Other mistake: When Mai starts explaining why she lost to Joey, two copies of the trap card Shadow of Eyes and two copies of the monster card Harpie Lady can be seen on her duel mat, even though she has only played one of each. (00:02:57)
Duel Identity, Part II - S1-E30
Other mistake: When Mai tells Yugi, "You just made your final mistake," it cuts to an overview shot where Yugi's life point count is 1350, even though at this point in the duel it should be 300. (00:06:03)
