Continuity mistake: At the end of the battle between Jaden Yuki and Gravekeeper's Chief, just as the explosion settles, in one shot you see the Gravekeeper's Spear card to the left of Gravekeeper's Chief on the duel disk. However in the next shot Gravekeeper's Spear is replaced with Magician of Black Chaos, which Chief neither has in his deck or ever played in the match. (00:13:35)
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
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)
Continuity mistake: When the Duel Ghouls break open the doors to the tennis court and Hassleberry and Axel walk back inside, in the crowd of Ghouls, the first row appears to be an Obelisk Blue student, a Ra Yellow student and a Slifer Red student. In the next shot, a Ra Yellow is now seen where the Obelisk student was standing and an Obelisk Blue student is where the Slifer Red student was standing. (00:17:02)
Inter-Dimension Detention - S3-E16
Continuity mistake: When Crowler and Bonaparte scream after seeing Sapphire Pegasus, they are shown facing the monster directly. There is quick cut to Sapphire Pegasus holding Winged Kuriboh in its mouth, but when the shot cuts after that, Crowler has rotated 90° and Bonaparte has turned around entirely to face the other characters. (00:05:04)
Unleash the Dragon: Part 1 - S3-E25
Continuity mistake: When Jesse breaks open the capsule, he picks up the Rainbow Dragon card inside it. In the shot of the capsule being opened, the card is drawn way too small, compared to every other time cards are shown in the series. (00:12:55)
Continuity mistake: When Pegasus is being fitted with the cyber-design interface and virtual reality headset, there are two cables attached to the left-hand side of the headset that are not attached to the duel disk on his arm. A couple seconds later, the two cables on the left-hand side are suddenly attached to the duel disk. Two cables on the right-hand side of the headset attached to the glove on his right hand also appear from nowhere. (00:00:13)
Continuity mistake: After Jaden and the gang leave Duel Academy, Marcel places a monster card on a duel disk. The monster card is in his right hand, but in the close-up of the card being placed on the duel disk, the card is in his left hand. (00:06:45)
