We love our robots but when we first came across Cassie even we were surprised at how well the system could stand and move being a bipedal robot. The above video shows how the universities sub-company Agility Robotics developed the robot and some of the struggles they had. They state their main motivation behind creating Cassie was to create a system that could take the place of a human in life-threatening situations such as fire & rescue operations.
For more information check out the universities website!