Continuity mistake: After Chazz hands Jaden the card to use in the duel, in the shot of Jaden saying "Uh, okay", the card is level with his face. In the next shot, the card is lowered away from his face. (00:10:52)
Don't Fear the Reaper - S2-E39
Revealing mistake: After Jaden summons Dandelion in defence mode, he places a card face down. When he goes to insert the card into the slot on his duel disk, his hand doesn't appear to align with the duel disk. His hand appears to pass over the spherical red light on the duel disk, and not the card slot. (00:13:02)
Don't Fear the Reaper - S2-E39
Continuity mistake: When Jaden hands Lucien his duel disk, Lucien takes back the duel disk and holds it. Two shots later, Lucien is still holding the duel disk, but when the shot cuts, it is suddenly lowered. (00:03:23)
Pro-Dueling - S2-E38
Other mistake: When Alexis activates her Ritual Weapon spell, her Cyber Angel Benten gains 1500 attack points. When this happens, the Life Point display is shown to display the Benten's attack points going from 1800 to 3300, instead of the Attack Point display that should've been shown. (00:13:40)
Pro-Dueling - S2-E38
Other mistake: When the MaƮtre D increases the attack points of his Bacchus monster, the Life Point display is shown to display the attack point count going from 1600 to 1900, and not the Attack Point display that is usually shown. (00:11:09)
Blinded by the Light: Part 1 - S2-E35
Continuity mistake: After Professor Banner goes back into the cat's body, there is an overview angle where the Ojama cards are on Jaden's desk. Two of the cards are positioned at rotated angles, but a couple of shots later, the cards are not rotated. (00:11:50)
Blinded by the Light: Part 1 - S2-E35
Continuity mistake: When Professor Banner says he doesn't know whether it's worse to live in the well or to live with Chazz, the three Ojama cards are being held by two crabs. There is a small gap between the three cards, but in the next shot, the cards are closer together. (00:11:22)
Blinded by the Light: Part 1 - S2-E35
Continuity mistake: When Jaden is looking at his cards the night before the duel, he has the cards on a mat. The cards are near the front of the mat, but a couple of shots later, the cards are nearer to the back of the mat. (00:09:58)
Blinded by the Light: Part 1 - S2-E35
Continuity mistake: The night before the duel, Jaden is in his dorm, sitting at his desk and looking at his cards. In an overview angle, he has his right hand over some cards, but in the next shot, he is suddenly holding two cards in his hand. (00:09:57)
Plot hole: Jaden activates Miracle Fusion, allowing him to fuse the Elemental Heroes Flame Wingman and Sparkman in his graveyard to summon Shining Flare Wingman. However, Flame Wingman was never sent to Jaden's graveyard. He activated De-Fusion (allowing him to summon Avian and Burstinatrix) when it was about to be destroyed, which meant Flame Wingman was sent back to his deck and not his graveyard. (00:17:13)
Other mistake: Franz gives up 1000 life points to destroy all monsters on Jaden's field, going from 2200 to 1200. Later, Franz activates Winged Dragon of Ra's secret ability, allowing him to sacrifice all but 1 life point to add it to Ra. However, when this happens, his life point count starts at 4000, when it was 1200 earlier. Ra gains 1199 attack points, so it does gain the correct number of points, but it was still wrong for the life point count to read 4000. (00:12:45 - 00:14:30)
Continuity mistake: When Chumley shows Jaden the Skyscraper 2: Hero City card, in the shot of Chumley raising the card, he is standing at an angle 90° perpendicular to Jaden. When the shot cuts, he is facing Jaden directly. His hand also goes from raised to lowered between shots. (00:03:45)
Continuity mistake: Chazz removes V-Tron Two from his graveyard and places it on the top of his deck. When the shot cuts, his right hand is suddenly at his side, when it wasn't in the previous shot. (00:12:20)
Audio problem: At the start of the duel between Chazz and Bastion, the white dorm students start chanting "All hail Chazz", but their mouths don't move. (00:09:27)
Other mistake: Jaden throws his fishing hook at the ocean, and it lands on Aster's steak. When Jaden goes to pull it back to him thinking it's a fish, Aster snaps the hook from the fishing rod, leaving the hook attached to the steak. Aster then continues eating the steak, but the hook cannot be seen inside it, even though it was never removed from the steak. (00:02:57)
Other mistake: When Jaden yanks Aster's steak into the air after mistaking it for a fish, Aster snatches the steak back with his fork. However, the steak had already been pulled into the air, so it would have been impossible for him to reach it. (00:02:56)
Continuity mistake: When the three Ra Yellow students are leaving the dorm, whilst one of them says to Bastion that he'll have the place to himself, the student has his head pointed downwards. In the next shot, his head is upright. (00:00:50)
Continuity mistake: At the start of the episode, when the three Ra Yellow students are first shown whilst they are duelling Chazz, their positions change between shots. (00:00:03)
Continuity mistake: When Alexis realises Bob is the loser who has been sending her all those love letters, Bob awkwardly moves back. At this moment, Jaden is standing 90° perpendicular to Alexis and Bob. But in the next shot, when Alexis advances on Jaden, he is suddenly facing her directly. Alexis is also suddenly facing Jaden directly in this shot, even though she was facing Bob in the shot prior. (00:04:22)
Continuity mistake: When Bob takes the Obelisk 30 card off Jaden, Jaden's hands are raised. In the next shot, they are suddenly lowered. (00:03:20)