One of the townspeople declares, in the middle of the battle, "No! Zombies, anything, but zombies!", which is a reference to the character of Pee Wee Johnson in Palm Harbor Vice 2: Brotherhood of the Monkey (1993), who says similar lines throughout that film and the townsperson is played by the same actor, David McKenzie.
"Palm Harbor Vice" is a spoof of the "Miami Vice" (1984) television show and parodies many of the show's elements, including the style, wardrobe, characters, plot and music.