I feel like discussing something that hasn't been discussed in this forum as far as I know: the music.
I actually went to Cedar Point last month (it's a long story, and I wanted my TT2 and SC rides).
When I was there, I got curious about the music and used Google to identify tracks. With the exception of the intro, which used a remix of Crazy Train, I found that most of the music came from Midnight Syndicate. I researched them, and found that their music was often used across major amusement park chains, and that there were times that the duo performed live at Cedar Point.
(BTW, I opted not to go to the Conjuring thing there).
My parents decided to go with me last weekend to the KI Haunt.
It seemed like the music there was quite different, with more traditional songs. The fountain played instrumental music, but my app indicated a different source: Rok Nardin. Some tracks included Rumbling, Apocalypse, and Destroyer of Worlds (the first two seem to be inspired by Attack on Titan).
I've been building a Halloween playlist on Spotify, and both Midnight Syndicate and Rok Nardin are part of it.
Have you heard any other notable Halloween music at Kings Island?
(BTW, we did do the Conjuring there, and I ended up carrying Annabelle)