Hello,
So I know this is not a hockey question but I know there are people here who have vast experience of ROM editing for the Genesis and have produced very enjoyable NHL rom hacks. I am trying to do update ATP Championship Tennis for the Genesis. I have located where the images sit on the ROM, but I do not know how to extract the palette information (offset for the palette via the hex editor) from the black and white image. I know EA used a similar concept for the NHL series and was looking for help. I know how to edit the text and player abilities but I would like to change some of the images. I would appreciate any assistance.