With the cheery catch-phrase, "Prepare to die, earth scum", a gang of 4ft aliens romp around on Halloween night, getting mixed up with trick or treaters, farm closures, crazy old coot Royal Dano, a gas pump attendant dressed as Zorro and some cutesy kids, ET-stylee.
Although this is basically just another film in which a bunch of midgets in green rubber masks run around shouting, it's still vaguely endearing, if about 15 minutes too long for the material. Of the Martians, only the Jack Nicholson-impersonating pilot makes much impression, but there are just enough dumb jokes and snappy ideas to keep the plot bubbling along nicely.