InspirationThe concept for Parasite Eve was based on a Japanese novel of the same name. The events of the novel take place one year before the game, and, while no characters from the novel show up, the events are referenced. There is also a movie and a manga series based on the novel.
SoundtrackLike most Square Soft releases, a soundtrack for Parasite Eve exists. Of course, music from the game cannot even be compared in quality with the soundtrack score, as this is orchestrated, far more better quality and digitized.
Information also contributed by Lain Crowley and Satoshi Kunsai