Continuity mistake: When Andy takes Chucky to Eddie Caputo's home, Andy stops off for a tinkle, putting Chucky on a rocking chair. We then see a view of Eddie Caputo's home, and there are wooden items and various junk lying around near the bottom of his front steps and yard. Yet seconds later when the camera pans up to the front stairs as if it's in the POV of Chucky running, nearly all the items have disappered. (00:35:50)
Continuity mistake: After Detective Morris saves Karen from the peddler, Morris walks away, and Karen grabs him and says "Goddamn it, my son's life is at stake! What was it?", and Karens handbag strap which is hanging over her left shoulder, falls all the way down her arm. Yet when it cuts to a back shot, the strap is back over her shoulder. (00:50:55)
Continuity mistake: The position of the spilt flour on the floor differs from when the camera first pans to it, to when Maggie gets the broom and dustpan and begins to clean it up. (00:21:45 - 00:22:50)
Continuity mistake: When Karen and Maggie go to the peddler in the back alley, as they approach the peddler, the large dumpster behind the peddler has it's lid halfway open. Yet when it cuts to them reaching him, the dumpster is closed. Cardboard boxes piled up to the left of the dumpster also appear between the same shots. (00:11:30)
Continuity mistake: As Andy talks to Dr. Ardmore through the bars in the door at the institution, sometimes Andy's right hand is gripping the wooden door, sometimes not. (01:03:55)
Continuity mistake: When Andy makes his mum breakfast, he puts burnt toast onto a plate then puts a big lump of margarine on a slice of toast. Then when Andy pulls the tray from the counter, the margarine rolls off the slice of toast, onto the plate. Then when Andy walks to his mum's room, the margarine has jumped back onto the slice of burnt toast. (00:08:15)
Continuity mistake: When Chucky is finally shot at the end of the film, his body falls to the floor, slanted on it's side and then dies. Yet seconds later when Andy looks at the remains of Chucky, Chucky's body is now sitting upright against the wall. (01:22:05 - 01:23:10)
Continuity mistake: When Mike Norris opens Karen's bedroom door, looking for Chucky, the camera pans around Karen's room and on top of her TV you can see a wicker basket, some books and a vase. Yet later when Chucky finally gets into the bedroom and chases Karen and Andy, and in following scenes, the vase has gone from the top of the TV. (01:13:25 - 01:18:20)
Chosen answer: This isn't a mistake. John made the voodoo doll himself. When Chucky said he was "prepared" for it, he meant that he was prepared to do whatever it takes to get information from John about his being wounded. Even killing him as we see.