Yes you still need the ROMs since these PC ports contain no copywritten code. Like the other person said, you will need to compile the game yourself, but there are tools that automate the process. It’s simply a matter of getting all the files you need in one place, and clicking a few buttons. The hard part is obtaining all the files (well, more tedious than hard, especially if you’re not a programmer or a Linux user).

Wait, is that what these brain chips are for? Well now I can’t hate on them as much as I used to if they’re meant to help people learn how to walk again. I thought it was just supposed to help you process thoughts more quickly or something, like a math coprocessor in an old 90s PC.