Was trying to unlock this theme. Turns out my Series 1 elite controller is dogshit and doesn't input the buttons correctly so I had to use another controller and now I got 1984 mode in tetris. I'll probalby sell that controller with my original xbone soon since I go a series S and the thing is just collecting dust. i kept it around so I could use my physical 360 discs to reduce wear and tear on the aging 360s.
@cool_boy_mew
This works on the switch version too with the konami code. I'm not sure how to enter the date but if you do you get 1984 mode which i a cool easter egg.

