Ask HN: Is someone tweaking classic ROM games with AI?

I just gave the original Zelda NES game to Fable 5.1 with instructions in a single prompt to change the world map to something new and it actually worked! It took like 15 minutes, the game is really nice and playable.

There is so much potential for tweaking/hacking those classic games and create new stuff on top on them. I wonder if some people already explored into that.