Corrected entry: Why is the gun used for the original ED-209 demonstration still in the boardroom at least 4 months after this happened? We know it is at least 4 months because at the beginning of the film the OCP chairman says, "In 6 months we begin construction of Delta City..." and when Clarence and Dick are talking in Dick's office, Dick says, "Delta City begins construction in 2 months..." (01:31:57)
Corrected entry: How exactly was ED-209 supposed to stop crime anyway or deal with criminals? ED-209 had no arms, no handcuffs, just two large machine guns with a rocket launcher. Unless OCP planned to simply kill all criminals (violent and non-violent) ED-209 would be completely ludicrous.
Corrected entry: When Robocop is being developed, his LED display is lowered over his eyes and the scientist fastens it with 4 screws. Later on when Robo's helmet comes off, we can see that: 1, there are no screws at all (as if the LED is part of the helmet itself), and 2, Robocop is still able to see L.E.D commands without his LED visor. (00:26:35 - 01:34:45)
Corrected entry: The Cobra assault cannon is actually a Baret .50 cal sniper rifle. How is it that this gun can fire bullets that cause massive explosions in everything including a hollow, non-explosive laden crane control box?
Corrected entry: When RoboCop is in the police research room he takes out his spike and turns to put it into the computer. As he turns, the hand moves towards the camera in a completely impossible way, given that his arms are hinged like normal arms - try and replicate that move and you'd do yourself an injury. (00:51:13)
Corrected entry: When all the bad guys meet back up after spending time locked up (the scene where they're playing with the assault cannons provided by Clarence)it is night time, and Clarence announces that "Robocop is in the steel mill, lets go" When they arrive at the mill, it is a very blue sky we are treated to.
Corrected entry: When RoboCop and ED-209 are fighting, they are outside Dick's office, on the same floor of the building. ED-209's grenades are firing away from Dick's office, towards RoboCop, but when Dick is on the phone we can see explosions from behind Dick. There is no way these can be ED-209's, so someone else must be trying to blow up the building. (01:09:37)
Corrected entry: In the scene in the washroom when Ronny Cox's corporate heavy confronts Miguel Ferrer's opportunist young businessman and gives him the third degree, pulling his hair whilst telling him whose boss. When Ronny Cox has finished threatening him, he walks out, and we are to suppose that he has left the washroom. Look at the circular mirror behind Miguel Ferrer and you'll see that Ronny Cox stops, turns around and stands still, possibly waiting for the scene to finish.
Corrected entry: When RoboCop is being tested at the shooting gallery, he twirls his gun. This is an action performed by Murphy when he was alive, and this is done purely to help Lewis realise that RoboCop is Murphy. But this action was not programmed into RoboCop, it was something done by Murphy himself, so shouldn't Bob Morton be worried that his machine was displaying behaviour it was not programmed with?
Corrected entry: When Murphy is practising his shots with the stacked baby food jars, his aim is "off", and he asks Lewis to "aim for me". The view through his visor shows the targeting lines are completely "off" and move into perfect position as Lewis moves the weapon. The computer targeting system should have appeared "on", moved "off" as Lewis re-aimed the weapon, and then moved back "on" as the computer re-acquired the target. If the visualization was still in-sync with the aim, then Murphy could have re-acquired the target without assistance.
Corrected entry: When Robocop is in the convenience store about to arrest the guy robbing the store, the robber shoots Robocop several times with a machine gun. Robocop walks up, grips the end of the gun, and bends it down. Basic physics dictate that either the robber would be lifted up or the gun would be prised out of his hands rather than the gun barrel bending, unless the robber weighs a ton and has an amazingly strong grip.