Revealing mistake: When Chazz summons X-Head Cannon and Z-Metal Tank to the field, he is shown standing completely still, without any body movement in sight. He was in the middle of summoning monsters, so he shouldn't have been standing still like that. (00:13:02)
Revealing mistake: Right before Jaden and Chazz start the duel, in the shot of Crowler saying "Indeed, and in front of the whole school too", there are two Slifer Red students who appear to be standing completely still and motionless. (00:09:43)
Revealing mistake: When Chazz summons Reborn Zombie in Defence Mode, the monster appears on the duel field, as well as the playing card beneath it, positioned at a horizontal angle, for it to stand on. The card casts a shadow on the ground, but the shadow can be seen lifting above the ground. (00:11:22)
Revealing mistake: When Alexis places her Blade Skater card on her duel disk, there is a brief frame where the cards on her duel disk pass above her hand. (00:13:09)
Duel Monsters Spirit Day - S1-E42
Revealing mistake: At the start of the episode, when each of the dorms are shown celebrating at their respective festivals, all the background extras are shown standing completely still, despite the primary characters moving around.
Revealing mistake: When Syrus and Bastion walk onto the arena field to congratulate Jaden, there are extras animated in the background who are cheering yet appear frozen and not moving in any way. (00:18:24)
Welcome to Duel Academy - S1-E1
Revealing mistake: When Jaden is running through the park at the start of the episode, there is an overview shot of him running past some people. The people are completely still and motionless in the shot. (00:00:10)
Revealing mistake: While Syrus and Hassleberry are calling for Jaden, there is a shot of a cliffside, that then pans upward to reveal the back side of the Slifer Red dorm. The windows on the left side of the dorm appear to have been drawn wrong, as they are smaller than the windows on the right side, even though they are all supposed to be the same size. (00:00:03)
