It looks like Boston Dynamics might have a solid competitor out there - a new group from MIT just created another four legs robots named Mini Cheeta. Aside to be light and fast, its most impressive features are (a) the agility enabling it to fairly easily perform a backflip and (b) the fact that this robot has been built to be 'virtually indestructible' (cit.). Original article: http://news.mit.edu/2019/mit-mini-cheetah-first-four-legged-robot-to-backflip-0304