Always thought it was a makeup job but damn it was cancer. Poor bastard.

Fuck, are there any Poltergeist movies where a principal cast member DIDN'T die horribly afterward?

This movie was terrible even without retrospect (maybe even worse than Poltergeist III), but Rev. Kane (who's kind of Bizarro Tall Man) and the tequila worm scene make it worthwhile.

I never actually realized Giger designed anything for it, might have to watch it again now.

Giger was hired to design the worm creature and the monster that the family meets in the "afterlife" or whatever. I can't remember what book has the designs, but I believe he was also asked to design some kind of multi-corpse monster thing that was supposed to have been found under the house, but never got into the film.