 Several commercial products were also released and targeted toward children or specialty markets.Such products include "Virtual Cop I" (an interactive CD-ROM comic book "about a criminal working for the cops to fight crime"), "Virtual Cop II", "BACKSTAGE" (an enhanced CD musical series), "A&E Biographies" (an enhanced CD featuring material from musical celebrities on A&E Biography), "Normal Walking" (an informational CD-ROM developed for pediatric surgeons), "Minnesota Zoo Game" (an educational CD-ROM), and "ScreamSavers" (a series of monster-themed screensavers).