But seriously
I think thats just a normal Xbox one
The biggest promo box I remember seeing was the A?4 cardboard chests, but I have see the inflatable blimps for GTA games and BioShock infinite and I believe there has been pretty big cardboard boxes but I don't remember what for (obviously not including the 8*6 foot standees or the game case stands that are like 4*2 feet >5*3)