Continuity mistake: Towards the end of Puppet Master II, Torch is about to set Michael on fire when he is hosed down with a fire extinguisher, covering the puppet in white foam. Later, when Torch reappears, he is again still covered, next scene he is clean, then next scene covered again.
Other mistake: In the scene with Torch and the lady with the shotgun, after she says, "You may think you got the powers of hell on your side, but you don't know who you're dealing with", Torch raises his flamethrower and Blade watches behind the wall. When Torch shoots with his flamethrower, the lady screams about 2 seconds later. When you see her again in the next shot she is totally on fire. If you think about it, you can tell the timing for the flame is not right and she wouldn't be on fire that fast.