In the video below, NimSony shows off Peach’s Castle as seen in last year’s platformer (but also strikingly similar to the classic Super Mario 64). The entire thing has been remade by the developer within VR, though it’s early days. As the developer states in the video, the environment has been made to showcase its Walkomotion locomotion system, which moves players within VR by running on the spot.
The developer intends to upgrade the system, though, to incorporate Mario’s entire move set. That means jumps, wall-jumps and more will be on the table, which sounds pretty ambitious.
As for the demo itself, you can expect it to release for free ‘very soon’. It will only be a short piece and not a full game (Nintendo might take issue with that).