Let's talk Chase. This is entirely supposition from the things written about it in the video; it's quite possible that was all just placeholder text - but all that text does seem to piece together into what might be a coherent game idea:
It's the game with a Boo icon. Here's the most intriguing shot of people discussing it:
I reckon, from that, that we're looking at a multiplayer game with asymmetric gameplay; one player controls the Boo, three other players control characters. I assume the objective for the Boo is to sneak up on the other players without being caught in their flashlights, while the others need to co-operate to corner and trap the Boo.
That doesn't sound in-depth enough to be a full game, I'm wondering if we're looking at a pack-in title?