I'm very new to modifying NES games, but I decided to take a crack at changing certain aspects of the Metal Gear black sheep, Snake's Revenge.
Using the FCEUX emulator, Tblater, Tile Layer Pro, and some online tutorials, I've been able to make some decent progress fixing up some of the game's graphical and grammatical issues, but I appear to have hit a wall I can't seem to get around.
Using the PPU viewer in FCEUX, I've been able to make tables to edit the in game text in the Hex editor. Things like the intro text and some interface labels have been easy enough to find in the ROM with the right tables, however I cannot seem to figure out how to edit the in game dialogue between characters you meet, the cutscenes, or the radio transmissions. I've tried almost every table I could come up with or see in the data with Tile Layer Pro and the PPU Viewer, but it seems like the text is hidden even after using what should be the correct table. Using the Name Table Viewer hasn't been much help in finding the key either.
If anyone has some advice or could manage to edit the dialogue themselves, I'd appreciate the help in figuring out the problem.