Continuity: In the picture of Morgan Moonscar in Simone's book, his scar is much longer than it was when we saw his ghost, and also later when we see his Zombie.

Continuity: Fred falls into the secret passageway while carrying with him. In a few later shots of him on the ground, the lantern is gone.

Continuity: During Semone's story, the position of the bandages wrapped around Morgan Moonscar's leg change significantly between shots.

Continuity: One of the cat creatures rips Shaggy's shirt at the end, but a few seconds later his shirt is fine.

Continuity: Daphne falls on Bo face up, but a few seconds later she is face down.

Continuity: After Jacques tells Dalphne that there have been no survivors from the island and she replies "So we understand" her hands magically appear on the steering wheel between shots.

Continuity: In the opening shot of Velma's bookstore, there are three books in one of the piles. She then places three more books on the pile, and carries them over to a table. In this shot there are well over six books in the pile.

Continuity: When Shaggy is driving with the zombie on top of the van and he stops suddenly, the zombie flies off the roof and lands in the dirt. But in the next shot, he's leaning up against a tree.

Continuity: The boss enter the storage room carrying the clipboard in his left hand. In the next shot, when Shaggy says "Like, hi boss" it's in his right hand.

Continuity: In the scene where Shaggy and Scooby are stuck in the pit with Morgan Moonscar's zombie, the amount of rust on his sword changes between shots.

Continuity: Between shots of Scooby sniffing the cat food, the things in the cupboard behind him change.

Continuity: When the gang first drives up to the house, there are no cats on the front porch. Then a few seconds later, as Fred points out, "this place is crawling with cats".

Continuity: When Lena suggests that Fred is too scared to go to the island, the table with the bananas on it that was there a few seconds earlier has vanished.

Continuity: When the bat-like monster is chasing Shaggy and Scooby and trips over the pot, the amount of spilt flowers and dirt changes between shots.

Audio problem: When the alligator bites on the fisherman's pole, the sounds heard don't match it biting on it.

Continuity: When Scooby is chasing the cats, he gets stuck in a log that has a hole in the top. This hole disappears a few seconds later.

Continuity: When Shaggy and Scooby are walking down the airport, the suitcases in the background change between shots.

Continuity: When Velma puts the pile of books on the table and sighs, the angle of the TV has changed from the opening shot of the bookstore.

Continuity: During Semone's story, when the moonlight flows through the opening in the ceiling, between shots the opening goes from having four horizontal bars and three vertical bars to having five horizontal bars and seven vertical bars.

Continuity: When Shaggy is talking on the phone with Fred and says "Busy? Nah." the scale on the table is further away from the phone than it was in previous shots.