Robocop is like Jack -- the laws of nature don't apply. How do you think he escaped from CTU after torture? Have you seen him have to use the bathroom?
That is one of the things the DP is still griping about from three shows ago. How Robo Cop - (practically dead from all the torture) manages to jump up, stab Tony with the meds and race out of CTU when he isn't supposed to be able to walk for three days.
Oh, well.
Doesn't bother me.