Continuity mistake: When Mac gets attacked by the dog, he lets the dog grab onto his fake arm and you see from the rear camera angle his other arm reaching into his jacket to release his fake arm. The camera angle changes and his arm is now at his side and you see him reach into his jacket again to release the fake arm.
Continuity mistake: When Chiun asks Remo if there is something he needs to ask him, (after Remo finds out Chiun will have to kill him to protect C.U.R.E.), you see Chiun take off his glasses and look to the side as he asks the question. The camera angle changes and he still looking straight ahead and then you see him turn his head to the side again.
Continuity mistake: Right before Maj. Fleming walks out of the office building, you see the guy with the great teeth sitting in his car with both hands on the steering wheel. The camera angle changes and you now see one had on his collar and the other on the seat of the car pushing the camera button.
Continuity mistake: Right after Remo and the Major escape the Gas chamber, you see them walking through the woods and when they start walking down a hill, Remo turns to help her and she is seen extending both arms out to grab him. The camera angle changes and you now see the Major extending only one arm to grab onto Remo.
Revealing mistake: Remo, clinging to a tree trunk, is shot at by Grove using a vehicle mounted machine gun. Pieces of trees are seen shot but this is only sound and special effects. There are no muzzle flashes from the machine gun, the cocking handle does not move in time with the shooting, nor does the cartridge belt move through the weapon.
Continuity mistake: When Remo and the Major are walking through the woods, Remo hears something and walks around a tree to see what it is. You then see Remo being thrown from behind the tree but you can see that the person being thrown was standing on a platform that was erected behind the tree that is about 5 feet off the ground.
Factual error: The fence surrounding the HARP facility that Remo and Conn break into is supposedly electrified. Not possible - it is a standard chain link fence affixed directly to aluminum posts driven into the ground. If it were electrified it would have to be insulated from the posts; the way it is shown in the film, the electricity would shunt into the ground. When the front-end loader hits it, a plume of firework-like sparks erupts from the point of impact. Also not possible - there was nothing in the bucket of the loader to detonate and the metal hitting against the electrified fence would, at most, cause some small electrical arcs.
Continuity mistake: When breaking out of the HARP facility, Remo puts a front-end loader in drive and bails off it before it crashes through the electric fence. The loader continues driving forward into the field beyond the fence; the motor is still running and it is still in drive. When Remo runs out, the loader has backed up and is now just outside the fence.