Neogenic Nightmare Chapter 11: Tablet of Time - S2-E9
Factual error: When Peter is walking Alissa home, the traffic signal at the intersection they stop at goes from red to yellow to green. Not what US traffic signals do - they go straight from red to green.
Suggested correction: Not entirely true; although they are rare and may no longer exist now, I've seen traffic lights that followed the red, yellow, green pattern as recently as the mid-1990s.
Interesting. What state (s) did you see this in? I'm assuming going from red to yellow was to encourage cars to cautiously enter the intersection in case someone was running a red light?
Traffic lights in the UK do this - it's more to give you a second to get ready, in gear, etc., then as soon as the lights turn green you can go. Otherwise you get no warning of when the lights are about to change.
In Illinois; as I said, such traffic lights are rare, but they did exist at least as recently as the time this episode of the series aired, and they may still possibly exist in larger cities such as New York City.
This traffic light set-up (red to yellow to green) still exists today in the UK. From what I understand, it is to alert the driver that the light will be turning green imminently and to prepare themselves to put their car in gear, as manual cars are still pretty common in Europe. I'd wager this light cycle was phased out of North America due to the abundance of automatic cars today. Could have been different in 1994 though.
It should be noted that traffic lights that go from red to yellow before going green keep the red light illuminated so that both red and yellow are lit up. However, that's not what happens in the scene. I've never seen a traffic light operate the way it's shown. And Massachusetts still has traffic lights that go from red to yellow, however, when red and yellow are lit up together, this allows for pedestrian crossing.
Sins of the Fathers Chapter 1: Doctor Strange - S3-E1
Revealing mistake: When Mary Jane and the other servants of Baron Mordo are flying through the city, they literally disappear into thin air. Probably a problem with rendering the 2D animation within the 3D animation. (00:01:00)
Sins of the Fathers Chapter 6: Framed - S3-E6
Plot hole: After Peter Parker is framed and arrested for selling government secrets to foreign organizations, he escapes police custody and goes home to retrieve his Spider-Man costume that was simply hanging in his dark room. If he was arrested for selling government secrets then surely the police would have searched his home and found his costume (as well as equipment) in the process. Since the police car was visible in front of his house, it seems very strange that police didn't search his home.
Factual error: Several episodes depict the moon in the night sky as being far too large.
Sins of the Fathers Chapter 8: The Ultimate Slayer - S3-E8
Factual error: Despite being a paraplegic, when Smythe is about to be lowered into the vat of chemicals, his legs are pretty toned and muscular. The show implies that Smythe had been wheelchair-bound for a long time, so even if he had muscular legs prior to his paralysis, the muscles would have atrophied.
Sins of the Fathers Chapter 3: Attack of the Octobot - S3-E3
Factual error: When Spider-Man and Doc Ock are talking in the lab, at one point, a shot of Doc Ock's face shows Spider-Man reflected in each side of his sunglasses. However, Doc Ock's glasses have a singular lens, and the straight angle of Spider-Man's reflections suggest that the glasses are in no way curved, so Spider-Man should only be reflected in them once.
Neogenic Nightmare Chapter 6: Morbius - S2-E6
Factual error: When Morbius is comatose at the hospital after reverting to his human form following his battle with Spider-Man, he is still wearing his trenchcoat, pants, boots, etc. The hospital staff wouldn't leave him in his outfit, they would dress him in a hospital gown. On top of that, he isn't even hooked up to any monitors.
Six Forgotten Warriors Chapter 4: The Six Fight Again - S5-E5
Factual error: When Kingpin has Robbie dangling from a helicopter, Spider-Man jumps onto the helicopter and tells Kingpin he promised to release Robbie, to which Kingpin replies sardonically with "And so I shall." Neither of these two should be able to hear each other over the helicopter rotors. Spider-Man doesn't possess super hearing and Kingpin is a normal human.
Sins of the Fathers Chapter 1: Doctor Strange - S3-E1
Continuity mistake: The hole in Dr. Strange's wall created by Baron Mordo's servants changes size and shape when Spider-Man is hanging Dr. Strange out the window. (00:10:25)
Sins of the Fathers Chapter 1: Doctor Strange - S3-E1
Continuity mistake: When Peter wakes up from Baron Mordo's illusion, he is wearing a monk's robe with sneakers and is barehanded. He removes the robe, revealing he was wearing his Spider-Man costume underneath, but his gloves and boots magically appear on his hands and feet as well. (00:09:45)
Neogenic Nightmare Chapter 5: Mutants Revenge - S2-E5
Continuity mistake: When the paramedics arrive to help Landon, they are shown approaching him from the direction his head is pointed. When the shot changes, they are now coming from the direction where his feet are pointed. (00:18:30)
Neogenic Nightmare Chapter 5: Mutants Revenge - S2-E5
Continuity mistake: After Wolverine is knocked unconscious by the voltage of the cage that Beast is trapped in, Beast is able to keep Wolverine from falling into the vat of chemicals below the cage by gripping the fabric of Wolverine's costume. Once the fabric tears away, Beast is able to grab Wolverine by the hand. Once he loses grip, Wolverine is able to grab onto the cage itself. When Genevieve starts shooting the laser gun at the Hobgoblin, Beast is again shown to be holding Wolverine by the fabric of his costume. (00:08:30 - 00:12:05)
Neogenic Nightmare Chapter 5: Mutants Revenge - S2-E5
Continuity mistake: When the Hobgoblin crashes his glider into the railing, the entire glider is outside the railing's crossbar. When the shot changes, the glider is suddenly stuck between the gaps in the railing. (00:11:10)
Neogenic Nightmare Chapter 5: Mutants Revenge - S2-E5
Continuity mistake: The size of the hole that Wolverine climbs through increases drastically. (00:07:45)
Neogenic Nightmare Chapter 5: Mutants Revenge - S2-E5
Continuity mistake: When Spider-Man says "I get the picture, Wolvie," he is shown to be running. When the shot changes, he is walking. (00:04:05)
Neogenic Nightmare Chapter 5: Mutants Revenge - S2-E5
Continuity mistake: When the targeting missiles lock onto Spider-Man, he is perched on a wall. When the shot changes, he is crouching on the ground. (00:03:05)
Neogenic Nightmare Chapter 4: The Mutant Agenda - S2-E4
Continuity mistake: When Spider-Man is battling the X-Men, he shoots webs at all of them, which they remove. Later when Spider-Man is in Xavier's study with the X-Men, Gambit is shown removing a piece of webbing from his right arm, even though he had already removed it earlier. (00:02:15 - 00:04:30)
Six Forgotten Warriors Chapter 5: The Price of Heroism - S5-E6
Plot hole: This series is in the same continuity as the other Marvel animated series from around the same time - X-Men, The Incredible Hulk, Iron Man, and Fantastic Four - by virtue of each aforementioned show crossing over with at least one of the others. This episode, which originally aired on October 17, 1997, establishes that Captain America had spent the last 50 years locked in another dimension with Red Skull, and the episode ends with he and Red Skull once again becoming trapped in the aforementioned dimension. However, the final episode of Fantastic Four, entitled "Doomsday," which originally aired on February 24, 1996, features a cameo by Captain America in the present day, attempting to stop a rampaging Dr. Doom.
Sins of the Fathers Chapter 1: Doctor Strange - S3-E1
Revealing mistake: The same shot of debris falling from the ceiling in Baron Mordo's lair is used twice. (00:14:25 - 00:15:45)
Neogenic Nightmare Chapter 5: Mutants Revenge - S2-E5
Revealing mistake: The same shot of Beast looking dejected after Spider-Man calls him "blue boy" is used again a few minutes later when Wolverine is telling Spider-Man that he doesn't have to carry his burden by himself. (00:16:15 - 00:19:15)