Revealing mistake: When Miss Fontaine is trying to contact Jaden, after she says "Please hurry", it cuts to a closer shot of her where she sighs. When this happens, she lifts the communication device up and down slightly. There is a small part of the device that is shadowed, but she moves slightly, the shadow suddenly vanishes. It doesn't fade away; it just blinks out of existence. (00:00:23)
Continuity mistake: When Winged Kuriboh is flying through the hallways, a group of Duel Ghouls turn around to face him. There is a shot of a Ra Yellow student and an Obelisk Blue student turning to him and start walking side-by-side. The next shot, the Ra Yellow student is 90° perpendicular to the Obelisk Blue student and turns around again. (00:03:15)
The Night of the Living Duelists - S3-E18
Continuity mistake: After Flame Wingman blows a hole in the wall and the gang escapes, the Duel Ghouls walk up to the wall. There are two circular pieces of rubble on the floor that move closer to the wall when it is shown from the outside. (00:19:20)
The Night of the Living Duelists - S3-E18
Continuity mistake: When the main characters find Syrus crying in the locker room, in the shot of Syrus saying "Go away, you guys", Syrus' head appears to be bent forward at a 45 degree angle. When the shot cuts, his head is fully lowered at a 90-degree angle. (00:17:37)
The Night of the Living Duelists - S3-E18
Revealing mistake: When everyone is running into the locker room through the doorway, the first aid kit held by Jesse appears to clip through the door frame when this happens. (00:17:06)
The Night of the Living Duelists - S3-E18
Revealing mistake: When the Duel Ghouls are approaching the main characters, in the shot where Chazz walks to the front of the crowd, there are three ghouls who are drawn black, with no facial features or clothing, to give off the impression that they are shadowed. (00:16:00)
The Night of the Living Duelists - S3-E18
Continuity mistake: When the Duel Ghouls are trying to get into the nurse's office, Ms Fontaine tries to make an emergency call on her device. Her fingers are placed over the back of the device, but when the shot cuts, her fingers are placed over the side of the device. (00:14:50)
The Night of the Living Duelists - S3-E18
Continuity mistake: When Bastion is writing a really long equation on the walls, the piece of chalk he is holding is level with his neck, but in a closer shot, the chalk is raised above his head. (00:02:58)
Continuity mistake: When Jesse summons Crystal Beasts Amethyst Cat and Topaz Tiger, in the shot of them approaching the scorpions, they are standing right next to each other, at 45-degree rotated angles. In the next shot, they are no longer positioned at a 45-degree angle. (00:17:25)
Continuity mistake: When the scorpions begin entering the room, in the shot from behind Jaden and the gang, Jim is shown standing right beside Jaden. But in the next shot, Jim is behind Jaden. (00:16:55)
Other mistake: When Jesse summons Crystal Beast Cobalt Eagle, the Life Point count is displayed instead of the Attack Point count. (00:11:18)
Continuity mistake: When Adrian is tempted to let go of the rope, Jim puts his hands on the rope before Adrian can do so. In the shot of Jim putting his hands on the rope, he places his left hand over Adrian's left hand. When the shot cuts, Jim's left hand is on Adrian's wrist. (00:09:02)
Continuity mistake: After Jaden suggests they use their duel monsters to fly to the submarine, Jesse raises his right hand and tells him that the bio-bands are still draining their energy when they use monsters. When the shot cuts, his right hand is suddenly lowered. (00:07:00)
Continuity mistake: When walking to the submarine, Jaden stops walking and Jesse asks "What now?" At this moment, Jaden is standing with his body rotated 90° perpendicular to Jesse, but when the shot cuts to Jaden, he has suddenly rotated so that he is facing Jesse more directly. (00:06:50)
Continuity mistake: When Miss Fontaine hands Jaden the paper with the medicine list, she is holding it in her left hand at first. When the shot cuts, the paper is in her right hand. (00:03:23)
Continuity mistake: When discussing how to treat Blair, Bastion says "I'm sure a real hospital would be more than capable of helping her" and Jaden, who is sitting right next to him, turns his head to face Bastion. In the next shot, Jaden's body has rotated 90° and is facing Bastion directly. (00:03:00)
Inter-Dimension Detention - S3-E16
Continuity mistake: When Blair is explaining to Jaden that the creature scratched her with its hand, in the following shot where the scratch on her arm is shown, her legs are bare. Two shots later, she is suddenly wearing tights. (00:19:42)
Inter-Dimension Detention - S3-E16
Deliberate mistake: When the Harpy trio attack Sapphire Pegasus, there is shot of them taking a swipe at him one at a time. This shot is repeated a few seconds later, as the body movements from all the characters are exactly the same. (00:12:12)
Inter-Dimension Detention - S3-E16
Continuity mistake: When Jesse says to Jaden and Hassleberry that they should go inside, his body is facing toward Jaden, but when the shot cuts, his body is facing toward the academy. (00:05:38)
Inter-Dimension Detention - S3-E16
Continuity mistake: When the tower collapses, Alexis can be seen next to Syrus and ahead of Jaden, Hassleberry and Jesse. When they begin running away in the next shot, Alexis has disappeared. (00:03:17)
