I don't think the NES is that interesting. Who said it is? It was just another machine that came out, had some games, got outdated, and then was replaced by something else just like all the rest.
The SNES was the most "special" of the Nintendo machines in that it hit the sweet spot where the games were sophisticated enough to be really interesting yet still simple enough to be made by small teams and thus not end up as run by committee corporate turds.
What's hilarious is that if you actually look at the code he's written for it, it's a horrible ball of spaghetti. The whole thing is a scam. Just because HE says "this is bad code" doesn't mean it's bad, and just because he wrote it, it doesn't mean it's good. Most people would find the clusterfuck he wrote unmaintainable, and the funny thing is that it doesn't even really DO ANYTHING YET.
That's not true. He works on it offline, and honestly, even if he did only work on it 2 hours per week, it's STILL not as far along as it should be by now for a supposed game development "guru." You got hoodwinked.