Mario Kart: Super Circuit VR, patch 1. An early test build for the experimental shelf of the Multiverse VR Hub.
The hub installs it over the official Mario Kart: Super Circuit recompilation v0.0.3 by Matthew Stanley (github.com/mstan/MarioKartSuperCircuitRecomp). You bring your own Mario Kart: Super Circuit (USA) ROM. No game files are in this download, and it is free and never sold, because the recompilation is under the PolyForm Noncommercial License 1.0.0.
This is an early test build. I have measured it on my desktop rig and have not tried every part in a headset yet.
More at rayrodtv.com.