The Mask of Doom: Part 1 - S1-E8
Other mistake: After Johnny frees Reed from his containment bubble, Reed stretches himself out of it, and Johnny can be seen hovering above and behind him in the background. Despite being in the background, Johnny's left knee somehow appears in front of Reed's body. (00:19:03)
The Mask of Doom: Part 1 - S1-E8
Other mistake: Reed tells Johnny to push the timer button on his watch to activate the cutting torch. However, the torch is activated without Johnny ever pressing the button. (00:17:59)
The Mask of Doom: Part 1 - S1-E8
Continuity mistake: The watch with the cutting torch Johnny is wearing doesn't appear on his wrist until Reed asks him if he is wearing it. (00:17:57)
The Mask of Doom: Part 1 - S1-E8
Revealing mistake: When Dr. Doom is telling the story of his father, there is one shot of three men standing near a campfire, and you can tell by the lack of animation concerning the smoke rising that the shot is frozen for roughly two seconds. (00:15:16)
The Mask of Doom: Part 1 - S1-E8
Continuity mistake: When Reed is saying "The clock is ticking," the watch on his wrist wasn't there in previous shots. (00:12:33)
The Mask of Doom: Part 1 - S1-E8
Continuity mistake: When Reed is telling Sue to have dinner with Dr. Doom, the white streaks in his hair are colored brown. (00:11:23)
Superskrull - S1-E7
Continuity mistake: When Lyja is telling the Skrull Emperor that the fight between Super Skrull and Thing is turning back to their favor, the light purple area of her costume around her chest and neck is not filled in properly, with about half her neck and one-third of her chest being visible. (00:14:01)
Superskrull - S1-E7
Plot hole: When Thing clobbers Super Skrull with the palm tree, Super Skrull flies back into the arms of Reed, who has disguised himself as a palm tree. While Reed can use his stretching ability to change his facial appearance, he can't change the color of his costume to cause his body to resemble a tree trunk and his arms and hands to resemble palm leaves. (00:19:18)
Superskrull - S1-E7
Audio problem: When Reed says "Exactly" after Johnny notes that Super Skrull has whole planet source backing him up, his mouth is closed for the third syllable. (00:17:34)
Superskrull - S1-E7
Continuity mistake: When the landlady takes a swing at Thing, there is a police officer and a bunch of lab equipment on her left. When the shot changes, Reed, Johnny and Sue are suddenly on her left. (00:16:40)
Superskrull - S1-E7
Continuity mistake: When Super Skrull knocks Thing away after the helicopter leaves, Thing lands facing Johnny and Sue. When the shot changes, he now has his back to them. (00:14:07)
The Mask of Doom: Part 1 - S1-E8
Continuity mistake: When Dr. Doom's robots are first seen in the pod, there are only three of them. When the shot changes, there are suddenly several more. (00:02:45)
Superskrull - S1-E7
Continuity mistake: When Reed is working on the jammer device, the positions of Sue, Johnny and Thing around him change numerous times. (00:17:11 - 00:17:59)
Superskrull - S1-E7
Continuity mistake: When Reed is speaking to Super Skrull through the megaphone, the white streaks in his hair are missing. (00:18:26)
Superskrull - S1-E7
Other mistake: When Manny Friendly is entering the Fantastic Four's lab, he is running in place for several steps. (00:15:49)
The Mask of Doom: Part 1 - S1-E8
Continuity mistake: When Johnny is listening to music and drumming with pencils, a stack of papers appears on the desk, and the paperweight moves from roughly the center of the desk to the far corner. (00:02:24)
The Mask of Doom: Part 1 - S1-E8
Continuity mistake: The trap doors that Dr. Doom drops the heroes down in don't appear until they are being opened. (00:08:03)
Superskrull - S1-E7
Audio problem: When Thing is first shown singing "It's clobbering time" at the end, his mouth is wide open. (00:20:30)
Superskrull - S1-E7
Deliberate mistake: When the Army soldiers are all walking towards Super Skrull, they all have the same face. (00:14:57)
The Mask of Doom: Part 1 - S1-E8
Audio problem: When Sue says "Stop, Reed" while practicing their dance moves, her mouth is closed. (00:01:32)
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 ★