Wow,
Because I've seen some of their earlier work, I only watched the last video. Your title nails it; I am going to have nightmares after watching this. It is horrifying to imagine these "creatures" put to use by some bad actors, particularly government/police organizations.
I hear you there! It has been funded by DARPA where that's a real possibility. I know irobot had multiple robots that were field tested, some with gun attachments. The upside (to some degree) was that only the human controller (and not the bot itself) could actually press the fire button.
Yeah, and how long will that constraint last? :O
These robots really are the stuff of nightmares; all my worst sci-fi screen horrors brought to life!
Well, guess it's time for Asimov's three laws... ;)