I remember seeing this title on the marquee at my home drive-in as a child. Watched it and finds it an interesting film, but curious as to why it's not in the Mad Doc series...or is it? The acting isn't bad at all, especially compared to original Mad Doc. I noted that the first scene of the monster's arms look like they were re-used from the Mad Doc flix. The Filipino back-drop of this film, as well as the Mad Doc films, provides something a little different and interesting that stands alone from movies that we're accustomed to viewing. The mono sound with the atmosphere, particularly in the opening scenes, gives the filmgoer the creeps. I do wish I could've talked my parents into taking me to see it way back then!