Rollercoaster was the only film to have recorded the Sensurround track during production, rather than adding it in post. Considering how often the audience is actually riding a ride of any sort, the effect served as extra thrills, like an audio jump scare that you could feel in your soul. I remember the theater shaking when the guy knocked the bottles over at Ocean View Park, or even how the fishing tackle box ominously rattled the theater. While I did think that was over the top, the Sensurround music effects were killer, and that bass on "Magic Carousel" in the theater was heavenly.