VR Walking Solution

Has anyone tried a new small experience from the game dev Filipp Keks called EvilMech Runner?
It a small game that introduces locomotion through head tracking thus enabling the user to walk or run in place and having the VR character do the same.
I would be totally grateful if someone had any idea how to implement that locomotion method to UE4 VR, or better yet - if it could be implemented into the VR template.
It really really ads to the sense of immersion, and also helps very much with motion sickness.