It is hand down awesome movie. There was a lot of reference to scooby-doo and courage villains. For example: In the intro
Scooby-Doo villains: The Green Ghost, The Creeper, Spooky space kook, Redbeard's Ghost.
Courage villains: The Evil Snowman, Freaky Fred, Eggplant people, The Clutching foot .
There even more reference in the manison and the museum
