Each time Megan's shirt is cut off, she appears to be wearing different panties. She also seems to be wearing a bra, although this was clearly cut off and unwearable.
The U.S. flag on the Slashers set is improperly displayed. Whether hanging vertically or horizontally, the union (stars) should be in the upper left corner.
When Chainsaw Charlie and Rick fall from the Bridge of Death, and onto the spikes, the spikes wobble as though they are fake, and not metal.
When Michael stabs Devon in the back, you can see the person who squirts the blood in the bottom left hand corner of the screen.