If you know anything about it, then you know its the greatest game to not be released. Originally slated for a release with N64 on all the original launch dates, i.e., Fall 95 etc, the company producing the title, Gametek, died. Once this happened, the game vanished. However, one of the original programmers for the game has put it online for download.
http://www.opusgames.com/games/rcd/rcdROM.html
With a good N64 emulator, you can play for free and see what never hit the market.