Robocop: Dead or alive, you're coming with me.
Dick Jones: I had to kill Bob Morton because he made a mistake. Now it's time to erase that mistake.
Clarence Boddicker: Can you fly, Bobby?
[After ED-209 kills a junior executive.]
Dick Jones: I'm sure this is just a glitch. A temporary setback.
The Old Man: You call this a GLITCH?
Bob Morton: You're gonna be a bad mother fucker!
Answer: When Bob Morton is told by a tech that one of Murphy's arm was saved, Bob stated that he wants total body prosthesis. Meaning Robocop's entire body was synthetic. None of his actual body was used. The only thing that was used was Murphy's actual face.
Also, his human brain, and possibly his spine, where OCP could wire him into the suit.
Movie Nut