I have a problem using the 2 players hack of Secret of Evermore because it requires a rom with header. However, I see only unheadered files and find no way to add a header to an unheadered rom. Is it possible with some tool? There is a rom with the 2004 patch for 2P mode, but I would prefer to use the updated version.
The gameplay balance patch is working well with an unheadered rom.