Beast of the Yellow Night (1970)

From the Philippines comes an intriguing combination of werewolfery with a Faustian pact. A soldier, desperate to escape death, makes a deal with a rather cheerful, chubby Satan to spare his life in exchange for his soul. So of COURSE there's a catch: Sure he gets to avoid death, but having sold his soul, he now obliged to absorb evil character from others, periodically turning into a cannibalistic fiend. Oh well. It's a living...