Pool Nation FX

From the main menu, choose endurance and change the difficulty to Insane using the Right Stick . Then hit Continue and at some point while playing it should unlock.
This did not unlock for me the first time, but did successfully the second (I also Quit the game and powered down the console in between the two attempts).
When this unlocks, if you don't already have it you will also pop the achievement "Nirvana" (playing a game of Endurance, any difficulty level).

(From the setup menu, after choosing Endurance, you should be able to combine this achievement with "Nirvana No Aimz" by toggling off the aim assist before starting, but that achievement does not appear to be unlocking for anyone, myself included.)

EDIT: The Devs have said on Twitter that this achievement should actually unlock on the Hard difficulty level, not Insane (which is actually higher).

This achievement was glitched for me. After several days of not playing the game , I fired it up. Under the following conditions for me, this achievement popped:

1. Endurance was the first thing I did after starting the game. I don't know if that is relevant or just random chance.
2. Set level to Insane
3. Set location to hawaii/day/table 1
4. Ball set 1
5. Decals none
6. Aiming Level novice
7. Press on Continue
8. Press on the How to Play screen
9. Press to skip the video

Under the above conditions the achievement then immediately popped before I even took the first shot. Was it random? Probably, but who knows.

The one weird thing I noticed is that when I first started the game it took so long to load that I wondered if something was wrong. Maybe because I had played so many other XBOX ONE titles in between Pool Nation sessions it had to reload into the memory cache. Maybe this is why the achievement popped or maybe I'm just typing out my ass. I honestly don't know.