Other mistake: In the final scene of the movie, Megan starts a boat motor and uses the propeller to hit Jason in the face, who has been chained down underwater. But if Jason can only barely reach her foot from underwater, there's no way the boat propeller is underwater far enough to reach his face. (01:17:50)
Suggested correction: The boat was driven a good ways, it's not like they were shallow and then all of a sudden deep. They were deep for a little bit. I mean not so deep like the ocean, but it was a good enough ways for someone to drown. Megan is tall for a girl and Jason is a big guy and the propeller is right at his head/neck.
You are very much mistaken. The boat propeller is too high to reach Jason's face.
Revealing mistake: When the counselors show up at camp with groceries, Paula and Cort walk away with bags to take inside. However if you watch the reflection in the side of the truck closely you can see them sit down and wait for the scene to end. (00:17:55)
Suggested correction: One of two things 1. They could have waited until they got all the other stuff to go. 2. One could have dropped a bunch of stuff and then the other went to help.
Continuity mistake: When Jason stabs Cort in the head (Cort is driving the camper) we see an exterior shot of the camper before it flips over. Look inside the camper; Jason is no longer standing behind the driver's seat where he stabbed Cort. In fact, Jason is gone altogether. (00:39:15)
Suggested correction: More than likely Jason fell back from the wreck, he's tough but not Superman tough.
This correction missed the point of the mistake. Before the RV flips, there's no sign of Jason when he should be seen standing between the front seats.
I watched it and Jason wasn't in sight. I wonder if he backed up while the RV was going crazy due to the driver getting stabbed in the head. I have no idea, I had to rewind and pause to see it.
Continuity mistake: Jason kills Burt and takes his belt, but the belt appears around Jason's waist before he has the chance to put it on.
Suggested correction: I watched a few clips and not a single scene where he takes Burt's belt. He takes his machete, but not his belt.
Plot hole: How did Tommy get Jason's mask? I don't think the police would let him keep it as a souvenir.
Suggested correction: This is not the same mask from the previous movie.
Yes, it is. It even has the ax mark from the end of the third movie.
It is a very different mask. The only things that match are the shape and the axe wound. The color changed from yellow to almond. The straps changed and snap on buttons that attached the straps were replaced with rivets. The half missing large red chevron has been replaced with a red triangle. The two smaller triangles under the eyes are gone. All the damage and chipped paint from part 4 is missing. This mask has more in common with the mask in Tommy's dream in part 5. My opinion - Tommy made it.
Continuity mistake: Tommy's got Jason's mask with the crack in it but the strap is fixed. Part 4 saw his sister cut the left strap in half, knocking it off Jason's face. (00:10:15)
Suggested correction: In Part 4 Jason's mask has snap on buttons connecting the straps to the mask. When Trish swings the machete at Jason she grazes the mask under the strap and it just unsnapped, it did not cut the strap. This is visible in the closeup of the mask on the ground where it falls. The real mistake here is the mask in this movie is different and does not use snap on buttons to attach the straps. The straps are attached with rivets that don't pop off.