I will be starting this countdown soon. So if you want to add a scary scene or moment to the competition, please reply asap. The ones I already will be including are:

Huntsman slowly approaches Snow White, prepared to stab her.
Snow White's horrific run through the dark forest.
The Queen's transformation Sequence.
The Hag's plan.
"She'll be buried alive!"
The Hag shows up at Snow White's window.
The Hag tries to crush the dwarves' bones.
Meeting Lady Tremaine.
Lady Tremaine follows Cinderella up to the attic.
Maleficent crashes the party and curses the baby.
Maleficent destroys her own minions.
Aurora's eerie trance.
Maleficent's goons unexpectedly and violently capture Phillip.
The Fairies sneak around the Forbidden Mountain.
Maleficent becomes a Dragon.
Ariel and Flounder in the sunken ship with a lurking shadowy creature.
Meeting Ursula.
The storm sequence.
King Triton destroys Ariel's collection.
Ariel is grabbed by Ursula's creepy garden prisoners.
Poor Unfortunate Souls reprise.
Ursula transforms into Vanessa.
Eric is entranced by a mysterious figure walking along the beach.
Ursula's wrath.
Maurice gets chased by the wolves.
Maurice meets the Beast.
Belle meets the Beast.
Belle gets caught snooping in the West Wing.
Belle gets chased by the wolves.
The entire town comes to take away Maurice.
Belle and Maurice are locked in the cellar.
Gaston VS. the Beast.
Meeting Jafar.
The creepy old man (Jafar) pulls out his knife to kill Aladdin and cackles.
Right after A Whole New World, Aladdin is suddenly violently attacked.
Aladdin almost drowns.
The sultan tells Jasmine she is to marry Jafar.
Prince Ali reprise.
Jafar VS. Aladdin.
Ratcliffe spots John Smith sneaking out at night and send Thomas to spy on him.
Savages.
The huns attack the Chinese soldier.
"How many men does it take to deliver a message?"
"A little girl will be missing her doll - we should return it to her."
The huns attack on the mountains.
Shan-Yu VS. Mulan.
Friends on the other side.
The audience sees the shadows capture Naveen but Tiana doesn't see it happen.
Dr. Facilier kills Ray.
Tiana tries to smash the talisman but Facilier just laughs and obtains it.
Facilier's death (Friends on the other Side reprise).