Talk:Mercury Black/@comment-2601:340:4200:F950:4000:C323:DD52:19ED-20180104035436/@comment-26018514-20180104042036

Actually, his legs more closely resemble true IRL running prosthesis... which are actually superior to the human foot, which he only needs for performance, while Yang's arms need to look human for psychological reasons in addition to the ability to perform recognisable hand signals and the efficiency of the human hand's form.