ok, for cthd2k3, you need to get the neoragex version which you can grab as for kof2k2, you need to use decrypted roms for it to work on kawa-x best thing to do for that is get winkawaks with a loader with a dat that has kof2k2 in it. before you go to load a game, go to tools and check off to keep decrypted c's/s1 then load and start that game. when the game is loaded the saved files will be with winkawaks.exe from there, you extract the kof2002.zip and delete the c roms that it has and use the ones that winkawaks saved and then make a zip called kof2k2nd.zip and enjoy theres also a neogeo tool for encrypting/decrypting c roms but i had no luck with it (maybe you can hehe) another easier way is if you can find the decrypted set (kof2k2n i believe) and just follow what i said after you got the saved c roms