So I was working on my hack, fixing up some object placements in SonED2. Just as I went to save, the program crashed. This caused me to lose months of hard work, I open SonED2 again to find the level data is completely scrambled, art/mappings/object placement is all gone. Luckily I have saved a build of the game from before the crash. So my question is: How, if at all possible, could I revive the art/mappings/object placement for the level from the rom? Can it be done? Or am I fucked and have to start all over? Edit: Origin game is Sonic 2 if people need to know.