Awesome Music: Not just the famous Silver Shamrock jingle but the general musical themes. You could tell this was a John Carpenter movie from the first seconds.
Bizarro Episode: For the franchise, being much more fantastical and Myers being nowhere to be seen and having nothing to do with the movie's events. That, and none of the events in the movies before it are ever mentioned in it, nor are any of its own events ever mentioned in the movies after it. Although, if the original plans for an anthology movie series had continued, this could've been averted, depending on what the other films would've been like.
Broken Base: Many people were outraged at the lack of any continuity with the first two films, and in general this film is written off as a bizarre non sequitur. Others, though, think that Carpenter's anthology idea was promising, but unfairly killed by fans who wouldn't accept a Halloween film without Michael Myers.
Complete Monster: Conal Cochran is the CEO of Silver Shamrock Novelties, a company known for its Halloween masks, which it shipped all over the United States. Cochran had built these masks with a computer chip made from a fragment of Stonehenge. When Silver Shamrock's commercial would air on Halloween night, the chip was to unleash a lethal swarm of insects and snakes, killing the wearer and anyone in the immediate vicinity. Cochran is shown demonstrating how these masks work on an innocent family, causing them to be poisoned and eaten. His plan is to kill thousands of children all over the country, partially to bring back the darker aspects of the Celtic festival Samhain, which he connects to witchcraft, but also just because he considers this mass murder to be a fun joke, the best ever in fact, because it's a joke on the children.
Contested Sequel: While this film has gained a cult following, it still tends to be polarizing to fans of other Halloween films.
Cult Classic: Has arguably the biggest cult following out of all the entries in the franchise, given the amount of love its gotten in recent years.
Ensemble Dark Horse: Many feel that despite the burden of having to replace Michael Myers, Conal Cochran was a good villain in his own right, and the late Dan O'Herlihy delivered a performance that even those who dislike the film, cannot help but admire.
He's Just Hiding!: It's implied Cochran may have survived, however, with the magic of Stonehenge transporting him to another location rather than killing him at the end of the film.
Writer/director Tommy Lee Wallace would go on, eight years later, to direct the miniseries adaptation of Stephen King's It— another film about a complete monster who kills children.
Dan O'Herlihy plays a Corrupt Corporate Executive, something that O'Herlihy would be well known portraying in the RoboCop films as "The Old Man." Both of O'Herlihy's roles even had companies that are populated with cyborgs (well, Cochran's are robots designed to resemble humans, while "The Old Man" has several that were built from those who used to be human).
Inferred Holocaust: The ending of the film sees that despite Dans pleas, the ad is still broadcasted on at least one channel, meaning thousands of children were likely killed.
Squick: A whole lot of it, both when Cochran's robot mooks decide they want to kill someone, and when the masks' evil spells are triggered on their unwitting victims...
They Wasted a Perfectly Good Plot: Many who dislike the film admit that the concept of the film and the anthology film series has potential, but feel that the execution is both lousy and laughable, or at the very least they should have went with another idea.
Vindicated by History: Arguably the biggest example in the whole franchise. While the film performed adequately at the box office, it was absolutely savaged by both fans and critics, and its gross paled in comparison to the first two films and even some that followed (such as The Return of Michael Myers and H20). It has since picked up a fairly significant cult following for its unique plot, fantastic score and atmosphere, and Visual Effects of Awesome. Many have admitted that after thirty years of increasingly disappointing sequels and no less than threeContinuity Reboots, the franchise may well have been better off as an anthology series like Carpenter intended, and that, had it not been called Halloween III, it would've gotten its due much earlier.