Couple of stills that actually made it into the book albeit in truncated or small form. The above is a detail from a Robo de las momias de Guanajuato lobby card, a nice shot of Mil Mascaras dropkicking two zombies at once.
This still from Las momias de Guanajuato was virtually identical to a slightly better frame from the same sequence, so it didn’t make the book. I really dig Blue Demon selling that zombie choke by leaping up slightly.