Looks fake. If you examine it. It looks like a doll or marionette sitting then suddenly you pull the strings really fast to the left and it looks like it is moving. The screaming adds some realism. Good hoax though!
That video is a couple years old, at least. I've seen this one making it's rounds before. It could be a doll, or marionette, which sounds like a better explanation. I always thought it might be one of those lizards that can run on its hind legs if startled.
The first time I saw it, it got me for sure. After watching it closely; not so much.
"There is far more to this world than taught in our schools, shown in the media, or proclaimed by the church and state. Most of mankind lives in a hypnotic trance, taking to be reality what is instead a twisted simulacrum of reality, a collective dream in which values are inverted, lies are taken as truth, and tyranny is accepted as security. They enjoy their ignorance and cling tightly to the misery that gives them identity"-Thomas Cox