The Seventh Shadow Rider - S1-E44
Continuity mistake: There are three trays shown on the cafeteria table closest to the door when Jaden, Syrus and Chumley walk in. When the three shout for Professor Banner later in the scene, the trays have disappeared from the table. (00:00:08 - 00:00:36)
The Seventh Shadow Rider - S1-E44
Continuity mistake: When Jaden, Syrus and Chumley walk into the cafeteria, they leave the door open when they go to sit down. But later in the scene, after realising that Chazz at their food, just before Syrus stands up to say "Professor", the door is closed. (00:00:08 - 00:00:36)
The Seventh Shadow Rider - S1-E44
Continuity mistake: After Professor Crowler's science experiment goes wrong, he starts shouting and it cuts to a shot of the students laughing. In this shot, Alexis and two other Obelisk Blue students can be seen behind Jaden, Syrus and Chumley laughing. Then it cuts to a shot focusing on Jaden and Syrus, and Alexis and the other students behind them have disappeared. (00:03:39)
The Seventh Shadow Rider - S1-E44
Continuity mistake: When Jaden, Syrus, Chumley and Chazz are searching Professor Banner's room, Chumley finds a note that has been folded over one time. In the next shot, the note is suddenly unfolded. (00:06:08)
The Seventh Shadow Rider - S1-E44
Continuity mistake: When Alexis loses the duel, she falls to the ground and there is a shot of her cards landing on the ground, including her Etoile Cyber card that lands face up. When the shot cuts, the cards surrounding Etoile Cyber have changed position. (00:12:55)
The Seventh Shadow Rider - S1-E44
Continuity mistake: When Chumley picks up Pharoah after finding him, Jaden and Syrus walk over to him. Light can be seen cast over the three of them from the torches they are holding, but in the next shot, the light from the torch has disappeared from their bodies. (00:16:48)
Amnael's Endgame: Part 1 - S1-E45
Continuity mistake: At the start of the duel, in the shot where Amnael says "Is that so? But what if you do not possess what it takes Jaden", there are five cards in his hand. The card positioned second to Amnael's right is placed beneath the other four cards. A couple seconds later, after activating Chaos Distil, whilst he is explaining the card's effect, the card positioned second to his right is now placed over the card to the right of it. (00:09:13 - 00:09:38)
Amnael's Endgame: Part 1 - S1-E45
Continuity mistake: When Jaden summons Bubbleman to the field, he uses the card's special ability to draw two more cards from his deck. There are two cards in his right hand, due to him drawing them from his deck. But then there is a close-up of his right hand, where there is now only one card in his hand. (00:11:00)
Amnael's Endgame: Part 1 - S1-E45
Other mistake: When Jaden places Elemental Hero Burstinatrix on his duel disk, the Elemental Hero Bubbleman card can be seen next to it. Bubbleman is shown to have 700 attack points listed on the card, even though this card is shown to have 800 attack points every time it is used in the series. (00:16:55)
Continuity mistake: In class, Syrus holds up a painting he made on his notepad for Jaden to see. Take note of the size of the pad, because a couple seconds later, after Jaden's painting of Sparkman is shown, the notepad is suddenly much smaller than it was seconds earlier. (00:01:55)
Continuity mistake: When Jaden is finishing off his painting of Sparkman, in the shot of him saying "It's a work of art. It's pure genius", his left hand is placed against the lower left side of the pad. In the same shot, he brushes a huge smear of red paint against the bottom half of the page. When the shot cuts, his left hand is nearer to the top of the pad, there are now paint smears are now across the top half of the page, and the paint smear along the bottom of the page has disappeared. (00:02:02)
Continuity mistake: When Crowler sacrifices his two Ancient Gears, he has his right hand raised in the shot where the two monsters vanish from the field. Then it cuts to a closer shot of Crowler, where his right hand is lowered. (00:07:23)
Graduation Match: Part 1 - S1-E51
Audio problem: After Jaden and Zane shake hands and the duel starts, there is a wide shot of the arena where the students are heard cheering for them. But the students all appear to be sitting completely still and motionless, and their mouths don't move in any way. (00:06:35)
Graduation Match: Part 1 - S1-E51
Continuity mistake: After the duel has started, Jaden and Zane draw five cards from their deck, and it then cuts to a shot from behind Zane where it pans over to show Jaden in the background. In this shot, Jaden's left hand is lowered, but when the shot cuts to an angle behind Jaden, his left hand is raised. (00:06:48)
Graduation Match: Part 1 - S1-E51
Other mistake: Zane activates the spell card Future Fusion. With this card, he is able to send three Cyber Dragons from his deck to the graveyard and summon the Fusion monster Cyber End Dragon to the field. However, this is not how Future Fusion works. When this card is activated, the player must wait two turns until the Fusion monster is summoned, it can't be summoned on the turn that it is used. (00:17:15)
Graduation Match: Part 2 - S1-E52
Plot hole: When Zane has Cyber End Dragon attack Rampart Blaster, Jaden activates De-Fusion, allowing Rampart Blaster to be sent back to his deck (and allowing Burstinatrix and Clayman to come back to the field). Later, when Jaden summons Shining Flare Wingman, he states that it will gain 300 points for each Elemental Hero in his graveyard. We are then shown eight Elemental Heroes in his graveyard, including Rampart Blaster, but this card was never sent to the graveyard, it was sent back to his deck. (00:09:13 - 00:14:43)