So those of you who don't have an Xbox One / Xbox One X. You'll be alright.
The demo is Nero's. And unfortunately its the old Gamescom build. So it only has Gerbera and Overture Devil Breakers. Not Punchline and Buster Arm like the updated demo build seen at TGS and NYCC. So no rocket riding or throwing bosses into Towers for this demo build.