The first 2/3 of this film wasn't that dissimilar to the American mummy films of the 30s and 40s. Two lovers in ancient Mexico dared to defy the law and were doomed to die. One became an Aztec mummy whose job it was to guard the sacred treasure and his lady love. And the lady was reincarnated in the present day and the mummy was naturally attracted to her. So far, it's all the typical mummy film...though it's quite a bit slower and duller than the American versions. Oh, and of course the Aztec mummy looked really, really crappy.
However, into this standard but boring film there is a super-villain. Why? I dunno--it sure didn't make any sense to have one. It seems this villain wants the treasure and he manages to hypnotize the lady and have her show them where the Aztec treasure is buried. Why does he need the treasure? Well, to buy the equipment needed to make an army of atomic robots, dummy! But first he has to construct a single mummy to defeat the mummy, as the mummy has so far been unstoppable.
You've got to see these "human-robots" as they look like the enormous clunky robots from Flash Gordon and other serials BUT they have a rubber head of a supposed dead guy inside! They really look hilariously funny and seeing the conclusion when there is a huge battle between the lethargic mummy and the equally slow robot is worth sitting through the rest of the dull movie. Both battle in super-slow-motion like they are bathed in taffy... and it's done in such an artless and silly fashion that it is bound to elicit chuckles--certainly not thrills.
Overall, the film is dreadfully dull and a muddled mess--especially at the end. However, for bad movie fans, it's a must-see--it's bad but unintentionally funny and great to watch and laugh at with friends.