Fred kicks the monster back into the hole it came out of but in the next scene the monster is shown to be by the coast line.
The hole the monster makes changes shapes.
First it is round then it is a square then it is a odd shaped hole then a circle again.
First it is round then it is a square then it is a odd shaped hole then a circle again.
When the monster shows up Shaggy and Scooby Doo are wearing squid costumes but when they are dropped onto the snowmobile they are nor wearing them anymore.
In one scene the fur on Daphne's hood is white instead of purple.
In closed captioning, Zelig is called "Zella".