This film is so poorly transferred, and projected dead centre in the screen, the title looks as though it is, RIGAL, and the opening credits are cropped on both sides of the screen, with the names of its cast and crew illegible, and apparently only available in unsubtitled Indonesian, which I do not speak, so I might have missed something in the story.Opening scene is unintentionally funny, as a bug-eyed man in swim trunks is killed by a POV shot, this proceeds to spend its first two thirds with Indonesian Panama Jack leading the hunt for sunken gold treasure, with a group of people on holiday nearby, at a campground called Siru Angsana, and scuba divers being methodically butchered by more POV camera-work.In case you hadn't noticed, the majority of the action occurs off-screen, but there is a good motorboat chase, reminiscent of Live And Let Die, which appears to use real stunts mixed with model work. It is one of the better scenes to the film (especially when the killer resorts to just simply throwing dynamite at the other boat!) but it has some awkward cuts, and the tiny little model motorboat's engine obviously falls off twice, only to reappear in each time, before its curiously large explosive crash into a cliff-side.Blurry cinematography, with lots of muddy underwater shots, but I like the change from a forest to a jungle setting. When the heavy nighttime downpour begins, the Friday the 13th clone begins, as the final thirty minutes are, quite literally, a scene-for-scene copy of the original Friday the 13th. Indonesian Pamela Voorhees slaps around the heroine at the climax, before Indonesian Alice plunges ... something or other, a corkscrew, maybe? into her chest. Sole survivor goes for an early morning canoe ride, only to learn that she is in a reenactment of the penultimate scene in Friday the 13th, as a seemingly burnt, decomposing body jumps out of the water, grabs her and pulls her under.Another amusing moment comes when Indonesian Kevin Bacon is running from killer, who is chasing him in a jeep, and he throws a rope at it to try to stop it.No classic, it cannot come close to the original Friday the 13th, but it can be amusing, if watched in the right frame of mind. It does have a quirky, oddly likable vibe. I'd watch it again, especially if I can ever find an unedited print, as again, a lot of the action occurs off-screen. Although, for what reason that happened is unclear, if the film had to be edited, or if there wasn't enough money in the budget for effects?