Final Hope! Yuki Judai - S4-E22
Continuity mistake: When Jaden sacrifices Chrysalis Pantail to reduce the damage dealt to him to zero, he has his left arm over his face. When the shot cuts, his left arm is at his side. (00:10:19)
Combo of Terror! Zero and Infinity - S4-E21
Continuity mistake: When Jaden is holding onto Jesse at the start of the episode, he places his left hand on Jesse's shoulder, and his right hand on Jesse's shoulder. A couple of seconds later, both hands are on Jesse's shoulders. (00:00:07)
Battle Royale! Judai VS Johan VS Fujiwara - S4-E19
Continuity mistake: When Jesse collapses on the ground after his life points go down to zero, his right hand can be seen placed along the line in the tile he is lying on. Later in the scene, in the shot where Jaden says "I activate it, targeting one monster in an opponent's graveyard", Jesse has changed position and his left leg is placed along the line in the tile. He returns to his original position ten seconds later. (00:16:35 - 00:17:17)
Invasion of Darkness! The Stolen Memories - S4-E17
Continuity mistake: In the vision of Chazz duelling, after he draws Ojama Yellow from his deck, he raises his Reload card, so that the two cards are level with each other. In the shot in front of Chazz, he has two fingers pressed against the back of the Reload card. When the shot cuts, he has the side of one finger against the back of the card. (00:09:35)
Duel Academia Crisis! The Gem Beasts Blocking the Way - S4-E16
Continuity mistake: When Hassleberry's life points go from 2900 to 1700, he has his arm raised so that his duel disk is level with his face. In the next shot, his arm is at a lower position. (00:14:40)
Gratitude Duel! Chronos vs. The Original Dropout Boy - S4-E11
Continuity mistake: When the students discover Crowler's class has been cancelled, in a wide shot, Syrus, Chazz, and Alexis are standing side-by-side. When the shot cuts, Syrus is behind Chazz, and Alexis is behind Syrus. (00:03:43)
Challenge from Psycho Shocker - S4-E7
Continuity mistake: When Jaden and Syrus run up to Zane after the duel has started, the two are side-by-side. In the next shot, Syrus is ahead of Jaden. (00:11:25)
Shall We Duel? Invitation to a Pair Duel - S4-E5
Continuity mistake: When Jaden beats his tag-duo opponents with Elemental Hero Flare Neos, the male opponent falls to the floor and lands on his back, while the female opponent looks at him saying "Hang in there." In the next shot, the boy is lying on his stomach, and the girl is looking at Jaden. (00:20:25)
Shall We Duel? Invitation to a Pair Duel - S4-E5
Continuity mistake: When Jaden draws Neo-Spacian Flare Scarab from his deck, in the shot of him drawing the card, he has two fingers pressed against the back of the card. In a close-up of the card, his index finger is closer to the side of the card and his middle finger is curled. (00:18:50)
Shall We Duel? Invitation to a Pair Duel - S4-E5
Continuity mistake: At the start of the first tag duel, Chancellor Shepherd draws a card from his deck. Two fingers are placed against the back of the card, right next to each other. Then there is a close-up of the card where his index finger is pointed upward. (00:12:45)
Shall We Duel? Invitation to a Pair Duel - S4-E5
Continuity mistake: When Blair is taking photos of Alexis in the opening scene, there are two students standing behind her and Hassleberry. Then, there is a shot of Hassleberry saying "Okay, I'm gonna go all-out" and the two students cannot be seen behind him. Then, two shots after that, they can be seen, albeit to the other end of the classroom. (00:00:40)
Fusing Souls! Neos VS F-G-D - S4-E4
Continuity mistake: After Trueman attempts to attack with Five-Headed Dragon and Jaden activates Negate Attack, Trueman's turn ends and Jaden's turn begins. He draws one card, with two fingers pressed against the back of the card. In a close-up of the card, the side of one finger is now pressed against the back of the card. (00:14:43)
The Truth Behind Darkness! Judai VS Fubuki - S4-E3
Continuity mistake: When Alexis walks into the infirmary to find Atticus gone, the first shot of the bed shows the duvet partially removed from the bed. She then runs up to the bed, and the duvet is suddenly placed back over the bed. (00:05:35)
Farewell, Duel Academia! The Path Judai Chooses - S4-E2
Deliberate mistake: When Sartorius walks over to his bedroom window, the tarot card that he sees wedged underneath the window doesn't appear until it is first shown in the close-up shot. (00:09:03)
Farewell, Duel Academia! The Path Judai Chooses - S4-E2
Continuity mistake: When Sartorius and Kagemaru get off the helicopter, in the first shot of the two, there is no one behind them. When Jaden approaches them two shots later, two bodyguards have suddenly appeared behind them. (00:07:58)