I mean, the moving objects could have been fishing line, but the scenes with mirrors, how do you fake that? The scene where the camera's pointing at itself on the tripod... the only way I can think of doing that is to have some type of small servos or motors in the stand itself, but that's pretty tough. What about the last scene, with the "demon face"? Do you think the video was just edited so that the one mirror was freeze-framed?

I don't really know. All of those could have been faked, but I feel like it would have been really difficult to fake them.