Welcome to Duel Academy - S1-E1
Continuity mistake: When Jaden draws Winged Kuriboh from his deck, in the shots where the card is shown from the front, Jaden has the side of one finger placed against the back of the card. But in the shots where the card is shown from the back, Jaden has two fingers pressed against the back of it. (00:13:52)
Welcome to Duel Academy - S1-E1
Continuity mistake: After summoning Elemental Hero Flame Wingman, in the shot of Jaden saying, "So teach, what do you think", the Wingman's tail is pointed upwards. When the shot cuts, the tail is pointed down towards the ground. (00:17:10)
Continuity mistake: When Bastion is looking out the helicopter window, no-one else can be seen near him, but in the next shot, another student has appeared standing next to him. (00:00:06)
Continuity mistake: On the helicopter arriving at Duel Academy, Syrus has his hands placed on the window. In the first shot, his hands are placed partially on the window frame, but in a closer shot, his hands are placed nearer to the centre of the window. (00:00:06)
Continuity mistake: When Alexis walks up to the boys in the duelling arena, in the first shot of her, she has her arms folded, with her right hand placed over her left upper arm. When the shot cuts to focus on her, her left upper arm is over her right hand. (00:07:20)
Continuity mistake: When Professor Banner introduces himself to the students, he raises his left hand to wave to them. In the next shot, his left hand is suddenly lowered. (00:09:04)
Continuity mistake: After Jaden has finished watching the video message from Chazz, in the close-up of the phone, he has his fingers over the front of the phone. When the shot cuts, his fingers are suddenly placed over the back of the phone. (00:10:12)
Continuity mistake: At the start of the duel, Chazz draws a card and has two fingers against the back of it. When it cuts to a close-up of the cards, he suddenly has one finger against the back. (00:11:15)
Continuity mistake: When Crowler breaks the lock to the girls' dorm, the lock and the chain that the lock is placed in land on the ground. The chain changes position when Syrus runs past it later in the scene. (00:06:02 - 00:06:52)
Continuity mistake: After Alexis summons Etoile Cyber to the field, she has her right hand at her side. When the shot cuts to a closer shot of her, her right hand and forearm are rotated to the left so that she can place a card face down. (00:11:48)
Continuity mistake: On Jaden's first turn, he draws a card from his deck. He has two fingers pressed against the back, but when the shot cuts, he now has the side of one finger placed against the card. (00:11:57)
Continuity mistake: When Jaden draws the Fusion Gate card, in the close-up shot of the card, it is facing toward him. In the next shot, the card is facing away from him and is also held differently (so that Jaden can place it on the duel disk). (00:14:00)
Continuity mistake: Crowler opens his trench coat to Chazz and his friends to reveal the rare cards. The cards are displayed in the boat as three separate rows, all equally distanced from one another. A couple seconds later, in the shot of Crowler saying "What's the matter, Chazz? Don't recognise me", the top row of cards is suddenly further away from the other two rows. (00:08:10)
Continuity mistake: When Crowler reveals the rare cards in his jacket, on the top row, there is a spell card with an orange hammer on the illustration (This card is called Hammer Shot). There are then a series of close-ups of the card, and when the Hammer Shot card is shown in the close-up, it is suddenly on one of the middle rows. (00:08:10)
Continuity mistake: At the start of the duel, Jaden draws a card from his deck, which is placed in between two fingers. When the card is revealed to be Winged Kuriboh, it is now placed in between his thumb and one finger. (00:09:57)
Continuity mistake: The duel starts with Jaden having five cards in his left hand, and then drawing one card from his deck with his right hand. The card is revealed to be Winged Kuriboh. Jaden never moves any of the cards in his hands around, but then he summons Elemental Hero Clayman, which he is shown holding in his right hand, even though Winged Kuriboh was just shown in his right hand. (00:09:58)
Continuity mistake: When Jaden summons Elemental Hero Clayman to the field in defence mode, another version of the card appears beneath Clayman for him to kneel on. The card is shaded yellow, but around a minute later, the Clayman card is suddenly shaded orange. (00:10:14 - 00:11:09)
Continuity mistake: After Jaden's life points have gone down to 1000, in the shot of Chazz saying, "Having some test anxiety", his arms are pointed down toward the ground. When the shot cuts to focus on Jaden, his arms are suddenly raised. (00:15:20)
Continuity mistake: In the flashback of the card shop owner giving Jaden the pack of rare cards, in the shot focusing on her, she is holding the pack with two hands, but when the shot focuses on Jaden, she is holding the pack with one hand. (00:15:45)
Continuity mistake: When Jaden walks into the dorm at the end of the episode, in the shot from above, he leaves his shoes on. A couple of seconds later, when the same shot angle is shown again, his shoes are suddenly off, even though he was never shown taking them off. (00:19:37)