First, here we have a non pretentious movie with a great cast and 80's style gore-action.
Second, looks like the director was inspired by movies like From Dusk Till Dawn or Hobo with a shotgun and Carpenter's Vampires.
Last, I really appreciate the effort of creating something decent here and in some ways it accomplished.
To add, decent performances and great 80's stylish music. So, overall a great B-movie entertainment.