The US military's Defense Research Projects Agency (DARPA) is at the forefront of revolutionary robot technology, after having developed and tested some really impressive automated robots. Some are designed with two legs, and others four, so as to duplicate the movements of humans and animals.
This video, however, shows some of the agency's impressive fails, as a number of the robots are unable to perform the simple task of standing upright.
Incidentally, their falls look a little human too.
