"Policenauts" was first released for the PC-9821 on July 29, 1994. Kojima received a letter from a hearing-impaired player after release, upset that modern games like "Policenauts" with its CD-ROM technology were replacing game text with actual speech. Kojima originally omitted subtitles to evoke a cinematic feel, but he added them for following versions to satisfy the players. The first port was for the 3DO Interactive Multiplayer and released on September 29, 1995. A short demo with a game glossary, artwork, and design documents was released on April 21, 1995 called the "Pilot Disk". The 3DO version and subsequent console ports had a drop in display resolution, and used newly animated full motion video in contrast to the animated stills used in the PC version. The visuals were animated by Anime International Company using traditional cel animation techniques.