Revealing mistake: When Joey asks Tristan, "Embarrassed 'cause you nearly destroyed the world as we know it?", the Millennium Puzzle is drawn incorrectly; the eye on the front side of the puzzle is way too high up and not in the centre where it is usually shown. (00:02:59)
Continuity mistake: After Tea goes to help Joey and Tristan carry Bakura, the Millennium Key and Millennium Scale are shown lying on the ground. The Millennium Key is placed on a floor brick that becomes a bigger brick when the shot cuts. (00:04:50)
Continuity mistake: When the main characters arrive back in the present, Yugi lifts his Millennium Puzzle to ask the Pharaoh if he's there. When he does this, the fingers on his right hand are tilted, but in the close-up of the puzzle, his fingers are level. (00:02:25)
Revealing mistake: When Yugi gets off the boat and sees everyone standing on the dock, Solomon can be seen to the left of the shot with his right arm randomly raised in the air. There is no reason for him to be doing this and he remains completely still while doing so. There is a painted-over freeze frame a few seconds later which shows both of his arms in the air and cheering, which may explain why his right arm was raised in the earlier shot even though he wasn't cheering at that point. (00:20:19)
Continuity mistake: When Tea goes into Yugi's room, there are cards on the desk. The cards (specifically the cards around his deck) change position when it cuts to a closer shot of the desk. (00:14:55)
