Continuity mistake: When Billy inspects Christie's sword, he's holding it hilt up in the wide shot. In the close-up, he's holding it hilt down. (00:30:30)
Continuity mistake: When the possessed Christie seduces then kills the cop in the hot tub, he pulls away from her embrace after he realises that she's poisoned him; he's holding onto her with both hands. In the next shot, he's holding her with just one hand. (00:44:10)
Continuity mistake: When Ninja Christie fights a cop in a graveyard, the cop smashes a headstone with his baton. The damage on the headstone changes between shots. (01:06:25)
Continuity mistake: At the start of the film, Hanjuro intimidates a bodyguard by crushing a golf ball with his hand. In the initial shot, his palm faces outward. In the next shot, his palm faces inward. (00:03:55)
Continuity mistake: Ninja Christie kills the cop playing billiards by slashing his face then throwing him onto a wall. The next shot shows that he instead flies out of the window. (00:38:50)
Continuity mistake: During the golf course opening scene, a motorcycle cop gets kicked to the ground by the ninja swinging from a grappling hook. In the next shot, the cop somehow falls into the water hazard along with his motorcycle. (00:07:28)
Continuity mistake: When the ninja shows his super-strength by lifting the golf cart, his left-hand keeps changing position at the back of the vehicle. (00:04:40)
Continuity mistake: In a moment during the fight scene between Ninja Christie and the cop playing billiards, she kicks him into a wall. His hand is raised in one shot but not in the next. (00:38:20)
Other mistake: Christie starts killing people at the funeral, and those in attendance start running away. When it shows a couple hiding behind a car, the woman is corpsing at best, the man is flat-out laughing. (01:05:15)
Revealing mistake: At the climax of the exorcism scene, Christie begins spinning at great speed. That's an impressive supernatural feat already, but the real scary part is that to do, so she also transmorphs into a dummy. (00:52:40)
Continuity mistake: When Christie kicks a cop head-first into a gravestone shattering it (the gravestone, not the head, although one wonders how just the latter could happen), the stone breaks in two completely different ways in separate shots. (01:06:55)
Continuity mistake: In the sequence where Hanjuro crashes the helicopter, the pilot disappears and reappears at random. (00:09:15)
Suggested correction: Actually no; he's still there even in the camera angle the second screenshot is from; the knee of the policeman that is fighting Hanjuro covers his head, and then the seat makes it impossible to see him again. You may have to slo-mo to spot it, but he's visible at the beginning of the shot.
