Grappling with a Guardian: Part 1 - S4-E30
Continuity mistake: When Tea and Mokuba climb up the fire escape, there is one bin around the fire escape that they use to climb with. A few seconds later, when Kaiba and Tristan climb up, a second bin has suddenly appeared for Tristan to climb with. (00:08:45)
Grappling with a Guardian: Part 1 - S4-E30
Continuity mistake: When Rafael shows Yugi the Seal of Orichalcos card, he is holding it with his thumb against the back and his finger across the front. When it cuts to a close-up of the card, he is holding it with his thumb on the front right-hand side and his finger on the front left-hand side. (00:10:27)
Fighting for a Friend: Part 5 - S4-E29
Continuity mistake: When Kaiba stands in front of Mokuba to protect him from the monsters, in the shot of Mokuba saying, "But they're not gone yet, those goons won't give up," Kaiba's arms are at his side. When the shot cuts, his torso is rotated, his left arm is now behind him and his right arm is raised and pointed to the left. (00:03:30)
Fighting for a Friend: Part 5 - S4-E29
Continuity mistake: When Mai activates the Elegant Egotist spell card, she is shown inserting the card into the fourth slot on her duel disk. But in the next shot, the card is inserted into the first slot on the duel disk. (00:10:07)
Fighting for a Friend: Part 5 - S4-E29
Continuity mistake: When Mai activates the Spell Reproduction spell card, she is shown inserting the card into the duel disk with her right hand. Also, her left hand is pointed to the right. In the next shot, her right hand is now away from the duel disk and is now holding onto a card in her left hand (which is now raised). (00:14:10)
Fighting for a Friend: Part 5 - S4-E29
Continuity mistake: Joey draws a card from his deck, says, "I'll place one card face down on the field," and inserts the card into a slot on his duel disk. He is holding the card with two fingers, but when the card is inserted into the slot in the next shot, he is holding it with three fingers. (00:16:13)
Fighting for a Friend: Part 5 - S4-E29
Revealing mistake: Just before Joey's life points go down to 800, there is a shot of him almost collapsing to the ground but still managing to stand up. In the shot, the cards in his hand are missing the illustrations. (00:11:05)
Fighting for a Friend: Part 4 - S4-E28
Continuity mistake: Joey uses his Cyber-Tech Alligator to destroy one of Mai's Cyber Harpie monsters, meaning there were two Cyber Harpies on the field before the attack, but only one after the attack. Only one Cyber Harpie card can be seen on Mai's duel disk after the attack. When Mai says, "You're pretty confident for someone who's about to lose," there are two Cyber Harpie cards on her duel disk, even though there should be one. (00:16:50 - 00:17:20)
Fighting for a Friend: Part 4 - S4-E28
Continuity mistake: When Yugi sees the Seal of Orichalcos in the sky, he stops running and has his right forearm pointed to the right. In the next shot, his right forearm is closer to his side. (00:17:51)
Fighting for a Friend: Part 5 - S4-E29
Continuity mistake: When Kaiba and Mokuba are standing in front of the monsters, the establishing shot of the scene shows the car parked in the middle of the road. The buildings on both sides of the street are parallel with the car, which would indicate that the car is directly facing the monsters. When the shot cuts, the car is rotated and facing away from the monsters. (00:02:20)
Fighting for a Friend: Part 5 - S4-E29
Continuity mistake: When the monsters reappear after being destroyed, Mokuba asks Kaiba how they are supposed to get rid of them if they come right back. At this moment, the two are standing next to each other. Kaiba then has his Blue-Eyes White Dragon blast the monsters again, but Mokuba cannot be seen next to Kaiba. (00:02:50)
Fighting for a Friend: Part 4 - S4-E28
Continuity mistake: When Kaiba and Mokuba are driving in the car, there is a shot of the two inside the car that focuses on Mokuba and then pans over to Kaiba. In the shot after this, their reflections have suddenly appeared in the window of the car, even though they were not visible in the previous shot. (00:11:42)
Fighting for a Friend: Part 4 - S4-E28
Continuity mistake: When Joey is struggling to keep his forearm up, there is a shot of him drawing a card from his deck. In the shot, the screen displaying his life point count can be seen on his duel disk, but in the next shot, the life point count has disappeared from the screen. (00:12:53)
Fighting for a Friend: Part 4 - S4-E28
Continuity mistake: Just before Mai summons the second Cyber Harpie, when she draws the card from her deck, she lowers her left arm. When the shot cuts, her left forearm is raised. (00:14:10)
Fighting for a Friend: Part 4 - S4-E28
Continuity mistake: After Mai's life points go down to 3600, she tells Joey, "You're going to have to do better than that," and points her right hand towards him. When she does this, her fingers are pointed forward towards Joey, but in the next shot, her fingers are pointed upwards. (00:17:05)
Fighting for a Friend: Part 4 - S4-E28
Continuity mistake: When the attack points of Mai's second Cyber Harpie go from 1800 up to 2100, Joey places one card face down. At this moment, the cards in Joey's hand are pointed downwards slightly. In the next shot, the cards are pointed at a more downward angle. (00:17:15)
Fighting for a Friend: Part 2 - S4-E26
Continuity mistake: When Mai sees the Seal of Orichalcos, she is sitting on a motorbike with her right hand on the throttle. In the next shot, her right hand is holding onto a helmet. (00:04:37)
Fighting for a Friend: Part 2 - S4-E26
Continuity mistake: When the spirits of the dragons go back into Yugi and Kaiba's cards, in the shot of Timaeus going back into the card that Yugi is holding, Yugi's right arm is raised. In the next shot, his right arm is lowered. (00:12:55)
Fighting for a Friend: Part 3 - S4-E27
Continuity mistake: When the attack points of Valon's Burning Knuckle go from 900 up to 1,100, the fingers in his right hand are outstretched. Then it cuts to a shot from Valon's POV, where his right hand is suddenly clenched into a fist. (00:11:55)
Fighting for a Friend: Part 4 - S4-E28
Continuity mistake: When Mai activates her duel disk so that she can duel Joey, the duel disk is pointed downwards. It then cuts to a wide shot where the duel disk is pointed upwards. (00:11:15)
