Continuity mistake: When the Enforcement Droid Series 209 fires at the police cars, the car in front has two stickers on the driver's door reading "Security Concept." After two bullets hit the door, the sticker with the "Security" text is missing.
Visible crew/equipment: When the Ninja robot attacks Robocop doing flip jumps, one can see it's a Caucasian stunt double, plus his hair is dry as opposed to the Ninja's slick hair.
Revealing mistake: When Robocop flies towards Marie and Nikko to save them, one can see a support by his waist (or a black fabric covering his legs).
Continuity mistake: Robocop collapses in the sewer, and a man with a screwdriver checks him. The screwdriver swaps hands between shots after he says, "Track him?" (00:41:25)
Continuity mistake: When Robocop is in the sewer, Nikko extends his left arm, grabs a ladder and mumbles, "Oh, rats." There's an instant cut, and now it's his right arm extended.
Plot hole: The opaque red lined map that Otomo retrieves from his first fight is ridiculous. Why would people who know where the hidden base is be carrying around a map on them (which shows a route so basic that they'd have to be brain-dead not to be able to remember it anyway) just so that conveniently one of their enemies can get it?
Continuity mistake: When the two Ninja robots fight, the robot on the left loses his head before the blade strikes.
Continuity mistake: Many of the splatterpunks Robocop kills in the beginning of the film show up later in the street battle.
Revealing mistake: When Robo gets his arm chopped off by Otomo, he stands up and in Robovision, you see that he needs power, but you cannot see Otomo who is supposedly right in front of him.
Other mistake: When Robocop is being repaired by the homeless guys, you can see clearly his stomach going up and down as he breathes. If he's mechanical he shouldn't be breathing, and even if they kept that bit of his innards, he's covered in a titanium shell so we shouldn't be able to see anything moving anyway.
Continuity mistake: When RoboCop is shot outside the church, he falls backwards against a door. As he then falls to the ground following this, watch his feet. You can see Robert John Burke's feet underneath the metal suit.
Continuity mistake: When RoboCop chases the van in the pimp's car, there is a view of the car driving without a roof, yet the roof is only blasted off in the next shot, after which we see the now roof-less car again.
Other mistake: Near the end, just before the OCP building explodes, when Robocop flies carrying both girls to get out of the office you can see the wires that make this possible.
Continuity mistake: Niko would easily have been burned by RoboCop's flight pack when she was hanging off it at the end. It isn't that big and Niko's legs would easily have gone down and past the flame holes. (01:31:33)
Factual error: When Robocop first flies into the the battle at the end of the movie, the whine from his jetpack causes the glass in some windows to blow outwards. Considering the sound waves are hitting the glass from the outside of the windows, they should be blown inwards not outwards.
Continuity mistake: When Otomo cuts off RoboCop's hand, RoboCop easily places his attachment in place of it and continues fighting. But his arm needed to be screwed off, and Otomo made a clean cut, so surely there would be bits of metal, plastic and wires that would have needed moving before RoboCop could put his attachment on?
Continuity mistake: Why are there bullet holes all over McDaggett's van when RoboCop is shooting at him? RoboCop has an advanced tracking system, so he never misses. All of his shots should have hit McDaggett, and only 1 or 2 appear to hit him on his bullet proof helmet.
Plot hole: When the elevator door sticks, he pushes the thick metal doors outward as though they were made of tinfoil. But when he reaches the room, he shoots out a silhouette in a flimsy wooden door to get in. How stupid. Total waste of ammunition and spoils the surprise factor.
Plot hole: What was the point of leaving the three men to guard the abandoned base? They would have stood no chance against any search patrol and would have simply given the Rehabs the map to the real base (on one of the three men). And why did the man even have that transparency with the red path, when he had no map to use it with? It was useless to him without a map, and only would have been a liability if he had been killed.
Continuity mistake: A blatant mistake if there ever was one. The rebel who is guarding the underground base whacks Otomo with a metal pole on the right hand side of his face, yet when he stands up, his mouth is dislocated to the right, instead of the left. How is that possible?
