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Nightmare Fuel: Gremlins
For starters, there's Stripe.
Mohawk is no better.He's much more wicked and fiendish than Stripe,and his looks are even more reptilian,threatening and menacing than those of the other gremlins.Gee,even as a Mogmai he looks insanely creepy!!!The way he tortures Gizmo and laughs sinisterly about it is just plain frightening.And there's also his Giant Spider mutant form...Imagine how arachnophobes must have felt at that scene.
Gremlin birth. 1) Mogwai -> mogwai. Gizmo-screaming. 2) Pupa -> gremlin. Giant slimy bug-looking things cracking open while Gizmo hides in the motorcycle helmet. 3) Gremlin-> gremlin. Watch the scene with the lightning gremlin and the fire hose. Then try to take a shower without scrubbing your back furiously.
"And that's how I found out there's no Santa." This is the climax of the speech Kate gives explaining why she doesn't believe in Santa and/or hates Christmas: when she was a little girl, her father disappeared without a trace on Christmas night. They never saw him until days later, when the house started to stink. It turned out he had wanted to surprise his little girl by playing Santa Claus, to the extent of trying to come down the chimney for her... instead, he slipped and broke his neck and got wedged in the chimney. And Kate was there when they hauled his decaying body out of the chimney.
Take the already dangerous and ubiquitous power of electricity and give it (semi-)intelligence and self-control. Oh yeah, and make it evil. Probably one of the most terrifying gremlins, when you think about it.