The Mask of Doom: Part 1 - S1-E8
Deliberate mistake: After Thing destroys the mirrors, the shot of him, Reed and Johnny traveling through the corridor is recycled footage of the corridor they traveled through to get to the hall of mirrors in the first place. (00:19:08 - 00:19:49)
The Mask of Doom: Part 1 - S1-E8
Other mistake: When Reed, Johnny and Thing come upon the hall or mirrors, Reed and Johnny do not cast any reflections until Reed notices that the mirrors are about to attack them with lasers. (00:19:16)
The Mask of Doom: Part 1 - S1-E8
Continuity mistake: When Reed, Johnny and Thing enter the hall of mirrors, Johnny is standing on Reed's left. When the shot changes, he is suddenly standing in front of Reed. (00:19:18)
The Mask of Doom: Part 2 - S1-E9
Other mistake: When Reed turns around and sees the huge spiked ball rolling towards him, Johnny and Thing, you can see that it is only a few dozen feet away from them at most, and is rolling towards them rapidly. Despite this, it takes more than 20 seconds for it to reach where they were standing. (00:05:00 - 00:05:23)
The Mask of Doom: Part 2 - S1-E9
Continuity mistake: During the flashback of Dr. Doom's father being abducted by soldiers, the young Victor Von Doom's red scarf disappears and reappears several times. (00:06:17)
The Mask of Doom: Part 2 - S1-E9
Revealing mistake: When the ski patrol is firing at young Victor Von Doom and his father, the tree they hit appears out of thin air. (00:07:20)
The Mask of Doom: Part 2 - S1-E9
Continuity mistake: After the young Victor Von Doom and his father tumble down the mountain, their heads are pointed in opposite directions. A couple of shots later, Victor's body has suddenly rotated roughly 90°, and the elder Von Doom's arms and scarf are in different positions. (00:07:28)
The Mask of Doom: Part 2 - S1-E9
Other mistake: When the ski patrol is looking down at what they believe to be the dead bodies of the Von Dooms, one patrol member has some scruff around his chin that disappears when he smiles. (00:07:36)
The Mask of Doom: Part 2 - S1-E9
Continuity mistake: When Reed turns his body into a staircase for Johnny and Thing to ascend, he is positioned at roughly a 20° angle. When the shot changes, he is now at roughly a 45° angle. (00:09:24)
The Mask of Doom: Part 2 - S1-E9
Revealing mistake: When the young violinist is handing Victor Von Doom a sack full of money, the sack passes through Doom's fingers. (00:09:52)
The Mask of Doom: Part 2 - S1-E9
Continuity mistake: When the Von Doom robot is facing the firing squad, at first only its right hand is bound with ropes. When the shot changes, both hands are now bound. (00:10:25)
The Mask of Doom: Part 2 - S1-E9
Audio problem: When Thing is saying "Let me punch us a door out," his mouth is not moving for part of the line. (00:11:16)
The Mask of Doom: Part 2 - S1-E9
Other mistake: When Johnny is rapidly spinning to cause an updraft, an overhead shot shows the rapid movement of his arms to be both in his Human Torch form, and in his costumed form. (00:12:08)
The Mask of Doom: Part 2 - S1-E9
Continuity mistake: The chimney Reed, Johnny and Thing escape from is shown to have a circular opening from inside, but a rectangular opening from outside. (00:12:16 - 00:13:36)
The Mask of Doom: Part 2 - S1-E9
Continuity mistake: When Johnny is saying "Come on down," his blonde hair is incorrectly colored brown. (00:12:35)
The Mask of Doom: Part 2 - S1-E9
Continuity mistake: When Reed is sliding down the slope after Johnny caused an updraft, the white streaks in his hair are incorrectly colored brown. (00:12:39)
The Mask of Doom: Part 2 - S1-E9
Continuity mistake: After Reed stretches to the top of the chimney, he sits on the edge with his legs dangling down inside and he leans down to tell Johnny and Thing to follow him. When the shot changes, we see the chimney opening from the inside and Reed is nowhere to be seen. (00:13:09)
The Mask of Doom: Part 2 - S1-E9
Continuity mistake: When Thing is climbing up the chimney wall, the cracks that he causes by gripping the walls with his hands disappear as he ascends. (00:13:21)
The Mask of Doom: Part 2 - S1-E9
Factual error: The American flag flying outside the university Von Doom attended has only 30 stars and nine stripes, when it should be 50 stars and 13 stripes. (00:14:59)
The Mask of Doom: Part 2 - S1-E9
Continuity mistake: When Sue is being taken away by Dr. Doom's assistant, her blonde eyebrows are incorrectly colored brown. (00:17:07)
Answer: Gleaned from the Internet: Much of the negative reaction was due to the poor, simplistic, and outdated quality of the animation where the characters moved stiffly and clumsily through scenes. There were also some obvious animation compositing gaffs. The animation colors were also criticized as being overly bright and cheery and out of character to the established story's darker tone. The broad humor of the first season was replaced by a more mature narrative between the characters.
raywest ★