Not only is this episode a fun Halloween devoted chapter, but is also a spoof of old Scooby Doo cartoons and does it all perfectly. Guest stars Korn represent the Scooby Gang as they enter South Park for a concert, and everything from their dialogue to the animation of their characters is perfect parody.
There is so much that is 'right' with this episode that it is difficult to review it. Everything from the witty one-liners (Stan's slam at the local easy listening radiostation booth), the spoofs (Kenny's costume) and signature character jokes (the crowds instant transformation into "lynch mob", Cartman's lack of sensitivity) are all perfectly delivered. I laughed throughout the entire episode. One of my favourites!
And the crude cemetery watchmen were hilarious!