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[[caption-width-right:350:[[SchmuckBait "Marion, don't look at it. Shut your eyes, Marion. Don't look at it, no matter what happens!"]]]]
* Indiana Jones' traitorous companion having several tarantulas on his back, which Jones casually pushes off his body, at least for the severely arachnophobic.
* When Indy triggers one of the traps in the cave, spikes suddenly emerge carrying the [[PeekABooCorpse decaying body]] of one of his older competitors. Most disturbing is the way its head fell into Indy's direction.
* Jones' traitorous assistant Satipo impaled upon the booby trap Indy and he managed to escape from earlier. His horrified expression makes it even more unnerving.
-->'''Indy:''' Adios, stupido.
* Major Toht threatening to burn Marion with a poker in The Raven bar. Heck, everything with Toht is terrifying due to the Gestapo RealitySubtext that surrounds him.
-->'''Toht''': Fraulein Ravenwood, let me show you what I am used to...
* Toht having the [[spoiler: medallion's side burned right onto his hand]] after his unsuccessful attempt to grab it during the bar fight earlier.
* The unsettling shot of the dead monkey after she ate the poisoned dates.
* When Indy and Sallah finally uncover the well of souls, [[JumpScare lightning flashes revealing a snarling statue of Anubis]], it's enough to catch the viewer off guard
* The Well of Souls is this trope both for the audience and Indy. ''Unbelievable'' amounts of snakes. And mummies. And snakes slithering out of the mummies. '''GAH.''' Imagine falling down into the SnakePit and landing directly near your worst fears and it is ready to attack you along with the other snakes all around you. This was enough to [[BreakTheBadass cause Indy to panic]].
* After Indy and Marion found a way to escape from being trapped in the Well of Souls, they are met with an awful surprise when they stumble into a room filled with decaying corpses. It also doesn't help that there are screeching sounds as if the dead were screaming at Marion and whenever she knocks down the corpses they fall in such a way that it looked like they were trying to grab her.
* While the Ark is being transported, it makes a eerie hum before it burns the swastika on the box it's being held in. Considering what it does in the finale, what else can the Ark do with its lid on?
* The (in)famous "opening of the Ark" sequence from the finale is [[SurpriseCreepy incredibly jarring for a viewer who has thus far enjoyed an action/adventure movie with a relatively light tone]]. The shot of a head imploding on itself, followed by a melting face - quickly followed by an ''exploding head'' - would have been enough to give plenty of theatre-goers nightmares.
** The moment the spirits that emerge from the Ark turn hostile is utterly nightmarish. At first, they're serene - even beautiful, as Belloq declares - and then they suddenly start to shift into skull-face terrors, snarling at those daring to look upon the open Ark. The shift in the music at this point is also rather frightening.
** On top of the visual horror, the sound [[spoiler:of Dietrich's head imploding. You can hear his brain matter turn to goop and his bones crunching! To further add to the nightmare fuel, there's the horrific hissing sound Toht's boiling blood makes, coupled with his screams getting muffled by the gurgling of his mouth filling with blood. ''And those screams continue as he becomes skeletonized.'']] Sweet dreams...
** Of all the things to remain in Area 51, the Ark is the only one that should be there. If you ever read the Bible or listened to Indy's warning, it's made pretty clear that you should NEVER OPEN THE ARK!
* Earlier in the film, a GiantMook is chopped up by the propeller of an airplane and while it happens off-screen, the copious amounts of blood on-screen are jarring, considering the Ark scene aside, the film is rather light on blood. It's never made clear, but in the long shot of the plane shortly before it explodes, a large smear across the sand with some chunky bits is seen near the plane...