Sinister Secrets: Part 1 - S5-E12
Continuity mistake: Just after Obnoxious Keltic Guardian destroys Little Red Riding Hood, there is a shot of Leon lowering his right arm. His forearm is raised slightly when he finishes lowering his arm, but when the shot cuts, his arm is lowered further. (00:11:00)
Sinister Secrets: Part 1 - S5-E12
Continuity mistake: When Kaiba is reading the paper detailing Leon's background, the paper is folded along the middle. But in the next shot, the fold in the paper has disappeared. (00:12:50)
Sinister Secrets: Part 1 - S5-E12
Continuity mistake: Just after Zigfried reveals that Leon is his brother, there is a shot focusing on Leon where his right arm is lowered. When the shot cuts, his upper arm is raised and his fingers are outstretched. (00:13:19)
Sinister Secrets: Part 1 - S5-E12
Continuity mistake: When Zigfried tells Kaiba to do what he thinks is right, he is standing in a position where he is facing Kaiba and has his left hand on his chest. When the shot cuts, he is standing with Kaiba positioned to the side of him, and his hand is lowered. (00:14:57)
Sinister Secrets: Part 1 - S5-E12
Continuity mistake: When Kaiba announces that the duel will continue, he has his right arm raised in the air. Then it cuts to a closer shot of Kaiba, where his right arm is lowered. (00:15:35)
Sinister Secrets: Part 1 - S5-E12
Continuity mistake: When Zigfried is telling Leon that he seems to possess all sorts of hidden abilities, Leon is holding a trophy against his upper arm. But in the next shot, the trophy is held above his shoulder. (00:19:03)
Sinister Secrets: Part 1 - S5-E12
Continuity mistake: When Zigfried tells Leon he has a gift that could thrust Schroeder Corp straight to number one, he is holding a floppy disk in between his fingers. The disk has a white piece of tape on one side that disappears from the disk when the shot cuts. The piece of tape reappears on the disk midway through the shot. (00:19:17)
Sinister Secrets: Part 1 - S5-E12
Continuity mistake: Just after Leon says he can summon his Iron Knight, it cuts to a shot focusing on Yugi. His arms are not visible around his face, but when the shot cuts, his left forearm is raised to be level with his face. (00:20:05)
Sinister Secrets: Part 1 - S5-E12
Continuity mistake: When Leon says "Get ready to step down, 'cause there's a new champion in town and his name is Leon Von Schroeder," he has his right arm raised and extended. In the next shot, his right arm is suddenly pulled back, with his upper arm being extended behind his back. (00:20:08)
Sinister Secrets: Part 1 - S5-E12
Revealing mistake: Just after Leon summons his Iron Knight, there is a shot of him saying, "I win." In the shot, there are cards visible in his hand. Then, midway through the shot, the cards abruptly disappear from his hand when he moves it. Then, the cards reappear in his hand at the end of the shot. (00:20:28)
Sinister Secrets: Part 2 - S5-E13
Continuity mistake: When Leon tells his Forest Hunter to attack Yugi's life points directly, he has his left hand placed on the bow while he prepares to fire the arrow. He has his thumb pressed against his middle finger, but when the shot cuts, his thumb is away from his middle finger. (00:02:59)
Sinister Secrets: Part 2 - S5-E13
Continuity mistake: Yugi draws the trap card Mirror Force from his deck with his right hand. After the close-up shot of the trap card in his right hand, he then summons Queen's Knight to the field. But the Queen's Knight card is in his right hand, despite Mirror Force being in his right hand in the previous shot. (00:04:52)
Sinister Secrets: Part 2 - S5-E13
Continuity mistake: After Leon brings back his Iron Hans and Iron Knight monsters to the field, he says to Yugi, "Let's see what you've got," while Yugi is facing Leon directly. When the shot cuts, Yugi has rotated 90 degrees to the left and has his head turned to face Leon. (00:07:53)
Sinister Secrets: Part 2 - S5-E13
Continuity mistake: Leon uses his Cinderella monster's effect, which allows him to transfer Cinderella's glass slippers onto Dark Magician Girl's feet, causing her to lose 1000 attack points. Later, after Zigfried admits that the Golden Castle of Stromberg card is illegal, there is a wide shot of him saying, "The most powerful card never released is already on the field," and in the shot, Dark Magician Girl is wearing her blue boots and not the glass slippers. (00:13:02 - 00:16:45)
Sinister Secrets: Part 2 - S5-E13
Continuity mistake: When Kaiba asks Zigfried where Leon got the Golden Castle of Stromberg card, Zigfried is standing behind Kaiba. Then there is a wide shot of the balcony from afar where Zigfried is standing beside Kaiba. (00:13:20)
Sinister Secrets: Part 2 - S5-E13
Continuity mistake: When Zigfried tells Kaiba not to blame him because his cheap computer network decided to malfunction, there is a shot focusing on Kaiba where Zigfried tells him KaibaCorp's heyday is over. In the shot, the KC logo on Kaiba's jacket is notably thinner compared to every other time it is shown. (00:15:04)
Sinister Secrets: Part 2 - S5-E13
Continuity mistake: When Joey tells Zigfried that he's shocked about him lying to his brother, Rebecca is standing ahead of Tea. When the shot cuts, Tea is ahead of Rebecca. (00:16:00)
Sinister Secrets: Part 2 - S5-E13
Continuity mistake: When Zigfried announces that the most powerful card never released is already on the field, Leon can be seen in the background, and he is directly facing Zigfried's position. The shot cuts to focus on Leon, and he is standing with his body facing towards Yugi and has his head turned to face Zigfried. (00:16:45)
Sinister Secrets: Part 2 - S5-E13
Revealing mistake: When Zigfried is saying, "There is only one true victor here, and that is Schroeder Corp," there is a brief montage of different groups of people watching the duel. During the montage, there is a shot of a family in the living room. A boy can be seen sitting on the floor with duel cards, and the cards that are face-up are missing the illustrations. (00:16:55)
Sinister Secrets: Part 3 - S5-E14
Continuity mistake: When Yugi walks over to Leon, he has two cards in his left hand. He then places his left hand on Leon's shoulder, and the cards in his hand have disappeared. (00:02:39)
