The Gate

The Gate is a 1980s horror movie where three children are left alone for the weekend. Through a set of contrived circumstances, they open a gate to hell in the backyard.

This movie exhibits the following tropes:

 * Body Horror: The demons cause an eye to grown in the protagonist's hand at one point.
 * Demonic Possession: Happens to the protagonists best friend partway through the movie.
 * Dragged Off to Hell: The protagonist's sister and friend. He has to rescue them.
 * Hell Gate: The centerpiece of the plot.
 * Jerkass: All of the sisters friends are this to the younger boys.
 * The Legions of Hell: Are mostly tiny devil things. At first...
 * Not Now, Kiddo: Not too painfully played, but the older sister doesn't believe themat first.
 * Our Demons Are Different: Mostly small, hunchbacked gray imps with one huge, four armed sloth thing leading them. They also have more Lovecraftian themes surrounding them than Satanic ones.
 * Separated From the Adults: The whole movie takes place while the parents are on vacation.
 * Shapeshifter Guilt Trip: The demons appear as the parents seconds after they first arrive. They break their diguise before they even speak, but all they ever say is "YOU'VE BEEN BAAAAAD!".
 * Subliminal Seduction: Inverted. The record is openly occult and is actually part of the coincidence that summons the demons. Playing it backwards provides the spell to banish them.