This Mexican adventure is a real treat for fans of cult movies.It has plenty of gore and violence including decapitations,throat cuttings etc.The scene where one guy has his eyes gouged out by some bloodthirsty crabs is the goriest bit and it reminds me the spiders sequence from Lucio Fulci's masterful "The Beyond"(1981).The cast is decent-a horror veteran Donald Pleasance("Halloween","Paganini Horror")shines as a Nazi adventurer.So if you are a fan of gory adventure movies like "Mountain of the Cannibal God" or "Cut and Run" give this one a look."The Treasure of the Amazon" is not easy to find though!