The Night of the Vipers - S3-E18
Revealing mistake: The final gun battle in town has a gunman in a tower shooting at West. The gunman's perch is enclosed on all four sides by a bannister, but when West returns fire, shooting the gunman out of the tower, the bannister in front of the gunman has disappeared, allowing the stuntman a clear path to fall out of it.
The Night of the Vipers - S3-E18
Revealing mistake: After West shoots the gunman in the tower, the gunman launches himself clear of the tower, rather than merely collapsing and then falling.
The Night of the Turncoat - S3-E13
Factual error: Artemus Gordon is standing in the train car throwing plastic darts. Plastic wasn't invented then, it would have been natural feather.
The Night of the Legion of Death - S3-E12
Revealing mistake: The scar makeup on Montgomery's face begins peeling off as he is giving his speech.
The Night of the Legion of Death - S3-E12
Continuity mistake: West and Gordon are being chased by members of the Legion, who wear green uniforms and black hats, but the stock footage of the chase shows the blue uniforms of regular U.S. Cavalry troopers.
The Night of the Legion of Death - S3-E12
Continuity mistake: The stock footage of West and Gordon being chased in the wagon by the Legion soldiers shows eight troopers, but other scenes show only four.
The Night of the Legion of Death - S3-E12
Continuity mistake: West sprinkles a thin line of powder into a circular shape surrounding him, but before the powder ignites and burns through the floor, it is thicker and has a wider circumference.
The Night of the Legion of Death - S3-E12
Continuity mistake: The stock footage of the wagon West is driving has a large opening in the front of the canopy as he is being chase down by the horsemen, but the close ups of West driving show a much smaller canopy on the wagon.
The Night of the Legion of Death - S3-E12
Continuity mistake: Stock footage of the wagon West drives to escape the horsemen shows a team of four horses, but the closer scenes show a team of only two horses pulling the wagon.
The Night of the Legion of Death - S3-E12
Continuity mistake: The long shots of the wagon West is driving shows it being chased by the horsemen in moonlight, lighting up the terrain showing trees, rocks, and scrub, but the close up of West driving shows nothing but blackness in the background.
The Night of the Colonel's Ghost - S2-E24
Continuity mistake: The balcony railing is intact above the column post where West ties his horse. When West returns to his horse to leave, the railing post is detached and falling away from the balcony. (00:02:55 - 00:05:35)
The Night of the Surreal McCoy - S2-E23
Continuity mistake: When West is pulling the string to shoot the gun, we can see under both knees his pants are covered in dirt. As he runs to enter the Saloon, the front camera shot shows no sign of dirt. (00:44:10)
The Night of the Deadly Bubble - S2-E22
Continuity mistake: When West and Dr. Pringle back up to the steel door to escape, West is about three feet in front of it. One of the villain's henchmen bursts in, saying, "hold it." The next shot and West is about eight feet away from the door and the henchman.
The Night of the Deadly Bubble - S2-E22
Continuity mistake: Dr. Pringle and West back up to a steel door to escape from the room and West is behind a table with lab equipment on it. A henchman charges in, gun drawn on West. The next instant shot shows the table has moved several feet to the viewer's left, presumably to make room for the impending fist fight West will have with the bad guys.
The Night of the Big Blast - S2-E4
Continuity mistake: Halfway between the opening credits and first freeze frame, Gordon and Ms. Lily Fortune are seen entering the private train car in the dark of night, but the shot before their entrance is of the front of the private train car at twilight. That shot of the train car also shows a backwards number 3.
The Night of Miguelito's Revenge - S4-E12
Continuity mistake: As Jeremy Pike holds the glass of brandy, it changes position from being up to down, then up again.
The Night of the Bubbling Death - S3-E1
Revealing mistake: West and Gordon burn a perfect circle (unlikely in and of itself) in the metal floor in order to break into the dungeon below. West punches the circle out with his fist, then grasps what should be white-hot edges with his bare hands before jumping through the opening. Even if wood it would still be too hot to touch. (00:32:00)
The Night of the Returning Dead - S2-E5
Continuity mistake: In the barn, when Artemus jokes about "smoked ham," he and West are standing within inches of each other. Then the shot cuts to a wider angle, at which point they're several feet apart. (00:21:20)
The Night of the Big Blast - S2-E4
Revealing mistake: The "corpse" Miklos wheels into Dr. Faustina's laboratory is pretty healthy for a dead guy: you can see his chest moving up and down as he breathes. (00:27:00)
The Night of the Big Blast - S2-E4
Continuity mistake: The large black straps hanging off the sides of Dr. Faustina's medical table disappear when West and Gordon burst into the lab. (00:44:00)
