Focus. Keep looking for clues; and don’t look behind you.
Not because the Rift head-tracking might bug-out, but because you’re being chased by a 10 foot severed head that wants to kill you. And it will. Over and over again, leaving behind a terrifying mental image of a grinning, one-eyed head floating over your corpse. Never has a game for the Oculus Rift caused so many screams and goosebumps as HEADS.