I do not think that I have seen this film, but the one picture of the guy with what looks like a metal colander on his head (to resist the alien brain control waves) is priceless. Interestingly, it appears to share some plot ideas with "Invader," a 1992 film that I am going to review.
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http://www.sideorderofninjas.com/
Link to review:
http://www.sideorderofninjas.com/reviews/theycame.html