Continuity: There is a scene in which a ghost shoots harpoons through the back door of the Mystery Machine. In the next shot, the harpoons are gone but there are no holes in the door of the van.

Continuity: When Shaggy and Scooby find the "Faux Ghost" ticket, they pick it up and examine it carefully. The Black Knight came and they ran away, dropping the ticket and never picking it up. But when they are back in the Mystery, Inc. headquarters, they have the ticket.

Continuity: When Daphne uses the jumper cables on the 10,000 Volt ghost, she and Fred get blasted away. When they get up, both are covered with soot and ash, however in the next scene when they meet up with Shaggy and Scooby, they are perfectly clean.

Continuity: When Daphne and Fred attach the jumper cable to the Black Night Ghost and the 10,000 Volt Ghost, they run away as the monsters explode. We see different shots of the monsters exploding and then we see Daphne and Fred in the corner running away a second time. It's the same shot as before.