man you can't just add a line to the rom was made for. trust me its been tried and it doesn't work. plain and simple, its not gonna happen unless theres a source to kawa-x which we all know won't happen cuz mr k won't release it. just use kawa-hex and be happy that you can play the games at least. just to let you know, theres no way in hell that with 1 xbe you're gonna be able to add kof2k3 when the p1 is out (if it ever comes out) as well, the game is big as kof2k2 (cut the m1 to 128k) and no other roms can replace it thats an alternate or different set.