The plot follows a group of small, furry aliens with carnivorous behavior escaping from two shape-shifting bounty hunters, landing in a small countryside town to feast on its inhabitants.
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On review aggregator website Rotten Tomatoes, the film has a 52% approval rating based on 50 reviews, with an average of 5.5/10. The site's consensus reads: "While Critters ekes out some fun from a game cast and screwball tone, the titular monsters fail to deliver the credible menace that makes a creature feature satisfying".[7] Roger Ebert of the Chicago Sun-Times rated the film three out of four stars: "What makes Critters more than a ripoff are its humor and its sense of style. This is a movie made by people who must have had fun making it".[8]
Marylynn Uricchio, film critic for the Pittsburgh Post-Gazette described the film as an enjoyable, if unoriginal, low budget monster movie. Uricchio wrote: "Critters isn't a memorable or even very slick movie, but it is good fun. What it lacks in substance it makes up for with a perverse kind of charm".[9] Caryn James of The New York Times complained that the movie lacked humor and suspense: "Critters just doesn't make the audience laugh or jump often enough".[10]
Alex Stewart reviewed Critters for White Dwarf #83, and stated that "Critters scuttled by quite pleasantly. Nothing really stands out, despite M. Emmet Walsh as the sweaty sheriff, and a scene wherein a couple of Heavy Metal bounty hunters blow away a Baptist church, but the film actually thinks through how the Browns react, as a family, to the anti-social little aliens".