That's the question. From my experience, I don't think I could.
It doesn't look like I transcribed the TMNT ROM from the die, so I'll work on that. I did type in the patent ROM, but it's scanned, photo-copied, dot-matrix printer output, so there are likely some errors. I can cross-check it with the die dump after I finish that.
I also typed in Contra from the patent, but I don't have that game.