Red Herring from A Pup Named Scooby-Doo (1988) is seen in the opening of the movie driving a truck called Red Herring's Party Screams.
The classic "my glasses" line normally said by Velma is now spoken by the elderly new reporter.
Mike quotes the line "Game over man, game over!" Which is a classic Bill Paxton line from Aliens (1986).
Elvira 2nd time appearing in a Scooby-Doo movie.
During the highway chase, there is a red car chasing the Scooby gang that is similar to the Plymouth in Christine (1983).