The Night of the Brain - S2-E21
Revealing mistake: Mr. Braine screams as his steam-powered chair crashes into the bandstand. If you look closely at the next shot, just before the explosion, you can see that the dummy now in the chair has its head bowed forward. It also has light brown hair, rather than Mr. Braine's silver hair. (00:47:10)
The Night of the Brain - S2-E21
Continuity mistake: When West and Gordon enter the print shop, they see Mr. Blackhurst's corpse sitting at his desk, with his head up, but when West and Gordon approach Blackhurst, his head is now noticeably bowed forward.
The Night of the Brain - S2-E21
Revealing mistake: When Gordon is looking outside on their train car platform, it is obvious the background desert scrub is a painted scenery flat.
The Night of the Wolf - S2-E27
Factual error: Several airplane contrails are visible in the sky as West gallops his horse to Stefan's coronation.
The Night of the Big Blast - S2-E4
Visible crew/equipment: The boom mic's shadow is visible as Lily Fortune and her mom enter the parlor of West and Gordon's railroad car.
The Night of the Big Blast - S2-E4
Revealing mistake: It is obviously a dummy body that West and Gordon net, then drag behind the carriage before the dummy body explodes.
The Night of the Brain - S2-E21
Other mistake: Throughout this episode Gordon keeps producing orange-sized smoke bombs, but he has no pockets in his clothing large enough for all of them and if he did, the size of the bombs would be obvious in his clothing.
The Night of the Man-Eating House - S2-E12
Visible crew/equipment: When the old man gets up from his chair and moves toward the door, the camera shadow is moving on the wall behind him. (00:18:40)
The Night of the Skulls - S2-E13
Revealing mistake: In the livery stable fight scene between Gordon and Tigo, the tines of the pitchfork Tigo threatens Gordon with wobble, indicating they are made of rubber or a soft material and not metal.
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 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)
The Night of the Big Blast - S2-E4
Visible crew/equipment: At the end of the sword fight, the moving boom shadow is visible on the balustrade at the right of the screen. (00:30:05)
The Night of the Big Blast - S2-E4
Revealing mistake: During the sword fight on the stairs, Artemus' stunt double's face is in plain view in several shots. (00:30:00)
The Night of the Eccentrics - S2-E1
Visible crew/equipment: Behind West, when he's suspended over the electrical field, you can see the shadow of the boom mike and rigging pole moving on the wall. (00:35:05)