I have only seen the first one and quite liked it. These came out around the time we were swamped with Zombie films, so I started avoiding them. Will give the sequel a go.
From what I remember the sequel is funnier and gorier, it reminded me of Braindead and Witching and Bitching.
I watched The Visitor (1979)
It was a really good mixture of sci-fi and horror and got very weird at times. Satanism, aliens, evil children, distorted soundtrack, psychic abilities, The Omen, Carrie and at times is the closest film to Hitchcock's The Birds...
David Ehrlich referred to the film as "a remake of The Bad Seed as filtered through the acid-tinged mind of Alejandro Jodorowsky."
The plot summary sounds crazy because it is, but I thought it was very well directed and never boring:
John Huston stars as an intergalactic warrior who joins a cosmic Christ figure in battle against a demonic 8-year-old girl and her pet hawk, while the fate of the universe hangs in the balance. Multi-dimensional warfare, pre-adolescent profanity, and brutal avian attacks combine to transport viewers to a state unlike anything they've experienced--somewhere between Hell and the darkest reaches of outer space.