"Kong at the Gates / Forbidden Zone" is the opening track combination from the Misfits' 1999 album, Famous Monsters, which features the lineup of Michale Graves on vocals, Doyle Wolfgang Von Frankenstein on guitar, and Jerry Only on bass. This two-part track serves as a dramatic statement for the album's horror-centric theme and showcases the polished, metal-tinged sound of the Graves era. "Kong at the Gates" is a brief, atmospheric instrumental intro. It features a slow, crushing, and heavy riff from Doyle, setting a cinematic, ominous tone meant to evoke the powerful presence of the giant ape, King Kong. The track is characterized by heavy distortion and a sense of mounting tension, functioning as a metallic curtain-raiser. "The Forbidden Zone" immediately follows, exploding into a fast, driving horror-punk anthem with Michale Graves' vocals. The music is characterized by a high-energy punk tempo mixed with the thick, modern metal guitar tone that defined the mid-era Misfits. Lyrically, the song references the 1968 classic sci-fi film Planet of the Apes, specifically the desolate, restricted area of the film's title, using the imagery of a ruined civilization and grotesque evolutionary themes. The track maintains the Misfits' tradition of fast, catchy, and melodramatic movie-themed songs, but with a clear 1990s rock production.