I saw this on the Lin Kuei Headquarters, that "Mortal Kombat Duo" was released last month for the PC. Don't think that it's just the same two games on one cd. Well, even though MK2 is the same it's worth the bucks to get it for the new version of MK1. The sounds were taken directly from the arcade. (no more zips and dinks) The game now takes up 18 megs of HD space and requires 4 megs of ram, but SirGalahad recommends 16 megs.