One of the most legendary pieces of early PC demoscene. Released in 1993, Second Reality by Future Crew is a very influential production.
http://pouet.net/prod.php?which=63 http://www.youtube.com/watch?v=rFv7mHTf0nA
http://pouet.net/prod.php?which=63 http://www.youtube.com/watch?v=rFv7mHTf0nA