This will run the RNG forward and backward, check a poke's PID/IVs for the proper relationship, or list compatible PIDs for given IVs: http://pokemon.thundaga.com/research/apps/pokegc_13.exe http://pokemon.thundaga.com/research/apps/pokegc_13_src.7z e: the source isn't great because it was ripped out of another project, but it works and is fairly readable. This is the proper version of shaym.in, fully restored from its butchering: http://hack.thundaga.com/doc.html e: or have a look at Toa