Chinese robotics company Unitree Robotics has unveiled the GD01, a 2.7-metre transformable mech suit capable of being piloted by a human operator. Footage released by the firm shows its CEO at the controls of the machine, which can smash through walls using its mechanical arms. The robot, which resembles the giant transforming machines of science fiction, is available from $650,000 and signals a bold step toward commercially available human-operated mecha technology.