I've said it quite a few times on here and I'm sure I'll keep saying it, the quality of the work done on this by Microsoft is incredible.
I'm not going to post too many details as I'd rather people watched the video but it's something that they've been building on for many years now and they have over 100 people working on backwards compatibility.
Another thing that I keep saying is that I've actually been far more impressed with the way they've enhanced these games on the X than I have been with the X enhancements on normal Xbox One games.
How Does Xbox 360 Backwards Compatibility on Xbox One Actually Work?
EDIT:
The Eurogamer article isn't up yet but I'll link to it when it goes live.
I'm not going to post too many details as I'd rather people watched the video but it's something that they've been building on for many years now and they have over 100 people working on backwards compatibility.
Another thing that I keep saying is that I've actually been far more impressed with the way they've enhanced these games on the X than I have been with the X enhancements on normal Xbox One games.
How Does Xbox 360 Backwards Compatibility on Xbox One Actually Work?
EDIT:
The Eurogamer article isn't up yet but I'll link to it when it goes live.