The developer of the Nesbox console emulator has released a Windows 10 UWP app that was supposed to hit Xbox One as well. It allows people to play old Nintendo and Sega console ROMs on Windows 10 PC, Windows 10 Mobile phones, and even the Microsoft HoloLens. And Xbox One was part of the roster too, but the app has been taken down from the store rather quickly, albeit only temporarily.
Microsoft wants the Xbox submission part removed. By the sounds of it, the publisher will allow this on Windows 10 but not the Xbox One, the dev claims. At least support to allow you to use your Xbox Controller on mobile is still happening. The new Bluetooth Xbox One S controller works fine with this emulator. While the on-screen overlays remain, we were able to use an Xbox controller to play all of our old favourites with ease.
The Nesbox app is designed to work with ROMs for Nintendo's older consoles like the NES, Super Nintendo and GameBoy Color/Advanced. Sega Genesis game ROMS are also supported. In theory, Nesbox should also work for the Xbox One console as well, but at the moment it looks like it has not yet been approved by Microsoft.