He just had the bad luck to find the memory-heavy areas first,

The VR setup is definitely just, ye standard VR videogame setup, with the headset, the system, and the TV. Familiar enough to a modern-day gamer who's been looking into it, but it probably looks pretty wild to anyone else. But there's lots of bright lights and colors, and on the screen it's definitely some kind of Beat Saber knockoff.