- This time Robocop has a different face. This is of course the result of Peter Weller quitting the role after Robocop 2, but the different face could also be justified in-universe with the battle damage Robocop suffered at the end of Robocop 2 by Cain aka Robocop 2. In that movie Cain brings an electric cutting torch to the Robocop's face, cutting a long streak on his face plate. It is highly likely that the molten metal damaged Murphy's face underneath and OCP technicians replaced it with a new face. Of course in Robocop 3 dr. Lazarus mentions that Robocop still has Murphy's facial and nervous tissue, but she said that in Robocop's presence. It is possible that Robocop's facial tissue was replaced and everyone keeps this fact from Robocop to prevent him from freaking out of a further loss of his former humanity.
- Also keep in mind that Robocop series of cyborgs goes from 0% freak out ratio to 75% ratio over the course of previous movie. OCP's perception of Robocop may very well have shifted from a perfectly reliable tool to a ticking bullet-spraying time bomb by the Robocop 3. In this movie the OCP official tells dr. Lazarus to get rid of Robocop's emotions by installing a restraining chip, which already existed. That means OCP has dedicated time, research and funds into the freak out problem and were just waiting for an excuse to implement it. It also gives the propaganda feed of Robocop butchering nuns a lot more credibility. The OCP officials may have thought that they might be able to convince the audience of the last Robocop going berserk.
- RoboCop mentions not having many friends, but seems to spend most of his time in the police headquarters basement or in his squad car. A bunch of policemen, his partner included, are hanging out in a donut shop near the beinning of the film and a few of them even ask his partner why he's not there, to which she responds something along the lines of it "not being his thing". The other officers almost universally still see him as the man he was before his death, rally to his aid in the previous film, and wonder where he is when his partner is sitting alone. It seems his perceived lack of friends is partially a result of him isolating himself.
Fridge / RoboCop 3