I have completely followed the simplistic mod on this forum and have successfully installed WADs such as TV show king, World of goo, and super mario bros. on NES. However, I have tried to install super mario land and killer instinct WADs that I have patched to region-free. When I try to play them all I get is a black screen! If it makes any difference, I have tried installing them on WAD manager 1.5 using IOS 249, 36, and 61. Any help would be appreciated.