Nope, it's not Dreadeye, I have that ready for Halloween. If you look in the Oculus Store you'll find it. The app is called Within and has several 360 videos. They also did the thing ages ago with you sitting on a lake and a train comes towards you and then turns into a flock of crows. I'm pretty sure you uploaded a video of that ages ago, back in the DK2 days.
Download the Within app and give it a go. Really annoying that they did the first part out of focus and in low resolution but the quality goes right up in the bit that freaked me out.
I was VERY close to 'doing a @UKRifter ' lol
And it's actually called 'Catatonic' not 'Catafuckingtonic', I was still a bit freaked out when I created this thread lmfao