Schlock Horror’s review published on Letterboxd:
Friday the 13th: Part III opens with our final girl Ginny from F13th: Part 2. We see that Ginny has survived the murders at Camp Crystal Lake. There is a clear drop in quality when you compare the third film to the original and sequel. The opening 16 minutes focuses on this married couple who own a shop. Jason kills them while stealing clothes off the line. Had this been a Halloween II '81 killing spree with Jason going house to house, I may have enjoyed it more. The payoff of their deaths ends up playing a very little part in the overall story.
We are now introduced to a new group of victims. They are nowhere near as likeable or interesting as previous characters. We've got the stoner couple, a prankster, a gymnast and female fodder for Jason. A weird subplot involving a group of bikers feels like it's only added to ramp up the death toll because nothing really happens for the first hour of the film if you don't include the shop owners. It's an hour in before Jason even starts murdering the group of friends. Once he does though, it doesn't really stop moving which makes the third act entertaining and bloody. It just takes a long time to get there.
The 3D gore effects are distracting and look terrible. There is no nice way of saying it. While an eye-popping out towards the audience may have played well in 1982, it looks cheesy by today's standards. You can see the strings and the way they did the effects. No visual effects or post-conversion technology to hide the flaws. While it's great to see how Jason finally gets the iconic hockey mask, Friday the 13th: Part III is a step down from the original and sequel. The third act is a highlight and I like that the entire camp feels like it was created on a sound stage.