Continuity mistake: When Robocop playbacks his recording of Clarence Boddicker spilling his guts about Dick Jones, the words he says are different than the ones that were recorded. (01:06:25 - 01:09:05)
Continuity mistake: Dick Jones brags (admits?) to Robocop, "I had to kill Bob Morton because he made a mistake. Now, it's time to erase that mistake" while Robocop is crouched on the ground, not only looking away from him from across the room, but also Robocop's eyes are in a vertical position. In the playback, Jones is facing the camera as though it were videotaped or filmed in a studio. (01:10:50 - 01:35:10)
Continuity mistake: When Clarence is checking the RoboCop Locator in Dick's office, the little light that tells you where RoboCop is still flashes after Clarence turns the locator off. (01:16:16)
Continuity mistake: When Clarence is talking with the other drug dealer in the warehouse, tempers flare and guns are drawn. The Asian gang member racks his shotgun (thus loading the weapon). Wouldn't he have kept it loaded? Anyway a few seconds later Robocop enters and the same Asian guy racks his shotgun again and no shell is ejected. (01:22:55)
Continuity mistake: You have to watch REALLY closely for this one. When Clarence and the gang are in the mill looking for RoboCop, we see RoboCop on the floor above them. He walks to the ledge with the mirror in his hands, but when we see a closeup of him, he has to bend down to pick up the mirror. (01:24:37)
Continuity mistake: When Robocop's about to be run down by the van towards the end, he fires his traditional three-round burst at the windscreen, somehow producing nine bullet holes. (01:25:40)
Continuity mistake: Just after Clarence's car crashes into the water we can see an overhead shot and the water is calm - it should still be rippling. (01:27:25)
Continuity mistake: Just before Clarence Boddicker crashes his 6000 SUX into the water after colliding with Lewis' Taurus Cruiser, there is a scene where his car is charging toward the camera, and a hubcap comes off and whistles past the camera, in fact they even put in a sound effect. But in one of the next shots, the hubcaps are back on. (01:29:50)
Continuity mistake: If you look closely at the computer panel in the OCP boardroom, there is no silver hole for RoboCop's spike, it is all black in colour. Yet there is a hole for his spike when he turns to prove Jones killed Bob. (01:29:56)
Continuity mistake: When Clarence's car is flipped over at the steel mill, he gets out and starts firing at Lewis. Look at the windshield on Lewis's car. It's in perfect condition and all of a sudden 9 bullet holes appear in it. Clarence didn't even shoot his gun that many times. (01:30:45)
Continuity mistake: When Robocop is at OCP trying to save "the old man," Jones is wearing a black suit while he is holding him hostage. After he releases him (as Robocop shoots him) the suit is grey, then turns black again as he crashes through the window and falls to his death. (01:35:30)
Continuity mistake: When Robocop shoots Dick Jones, the bullets go through Jones but not through the window which is right behind him. (01:35:55)
Continuity mistake: In the end scene Robocop shoots Dick Jones out the window while he is standing in front of the television screens, then he spins his gun and puts it into his right leg. The camera view changes to focus on his leg, and you can see he is not standing in front of the screen and a person's legs appear standing behind Robocop, with black corporate pants and leather shoes. In the next shot when it focuses back on Robocop, he is back in front of the television screens again after putting his gun away. Obviously the leg view is from a dummy, because the blood & damage on it was missing in that shot. (01:36:00)
Continuity mistake: When the ED-209 gets to the stairs and tries to give the first step, its right arm changes from having one cannon and missile launcher to having two cannons and two ammo clips of sorts (just like its left arm). When ED slides and is falling, the arm changes back to normal; and at the end of the fall, its arm has two cannons again.
Continuity mistake: In the cocaine factory scene when Robocop enters and start shooting all the workers, one of the workers on the cat walk gets shot in the left shoulder, but in the next shot when Robocop is walking underneath, it appears he has been shot in the right shoulder.
Continuity mistake: When Robo is shooting at the police station at the practice area, he's firing for a while before we see the target, and it's nowhere near destroyed enough for the number of bullets he's already fired at it.
Continuity mistake: When the ED-209 kills the businessman, his chest and tummy are covered in blood. However, when he falls backwards, the shirt is clean except for a small spot with blood.
Continuity mistake: Murphy has blood on his head right after he's shot in the arm. It wasn't there before.
Continuity mistake: During the beginning shootout, the police car's windshield is shot twice, obscuring visibility. The cop car pulls up along side the van. The holes in the windshield are gone. They return in the next shot.
Continuity mistake: In the steel mill, as Clarence and company are walking along, in the wide shot Murphy comes in from his left side holding a piece of metal. In the close up he picks up the metal to toss.
Answer: According to Wikipedia the ED-260 is an upgradeable version of the ED-209.