- Admit it, General Grievous' intro fight scared you when you were a kid. The deaths of some of the Jedi that Grievous fought were very unsettling. The music playing throughout the fight doesn't help things either. The whole episode was treated like a horror movie, the way Grievous kept vanishing only to pop out and tear someone to bits, the tense music, the way the young Jedi freaks out. It's like watching an animated version of Alien with lightsabers.
- Oh, and another one of the general's weapons is a chainsaw (we don't see it, but in episode 23, a chainsaw noise, which the director added for horror purposes, can be heard from behind the door where Grievous is fighting a squad of clone troopers).
- Same scene, the short "Montage" of Grievous killing the clone troopers.
- That Grievous enters the scene by crushing a terrified padawan to death beneath him certainly aids the terror.
- the aftermath of it all is quite horrifying to. Ki-Adi Mundi, usually a calm and collected Jedi Master is absolutely hysterical, with wounds all over his body, clearly in shock after his entire crew, him included almost got killed by a nigh-unstoppable killing machine.
- Just as the clone troopers arrive, Grievous knocks away Ki-Adi Mundi's lightsaber and is about to deliver the final blow. If the troopers had arrived even a second later, Ki-Adi would be dead.
- Anakin's venture into the cave on Nelvaan gives us this rather creepy bit of foreshadowing, as Anakin sees the Story of the Ghost Hand play out before him. It finishes with the helpless hero, his village and family devoured by the Ghost Hand, having an And I Must Scream moment...before the Ghost Hand reforms into the image of Darth Vader.
- On top of that, Anakin is able to hear a pained and horrified Padme screaming for him just before he snaps out of his vision.
- In spite of it being a Kick the Son of a Bitch moment, the sequence where Anakin falls into an Unstoppable Rage and slaughters the Skakoan scientists after witnessing the cruel experiments on the Nelvaanian males. The look on his face when he is about to kill them is pure hatred. The reaction of the Nelvaanian's towards the slaughter speaks volumes. The death of the lead scientist deserves special mention. According to both canon and other Legends stories, Skakoans come from a planet with a high-pressure atmosphere. If their pressure suits were to get breached, they would explosively decompress. While the scientist doesn't explode, the sight of his neck and pressure suit getting crushed while releasing gas is more visually unsettling than what usually happens to Anakin/Darth Vader's other Force Choke victims.
- Anakin's rage during his battle with Ventress. The last time he was that angry he slaughtered a village. It's the same rage that would fuel Vader for decades.
- The Battle of Coruscant shows that the space battle is so full of ships that one of the Confederacy ships coming out of hyperdrive promptly rams into a Republic ship, unable to stop in time.
- Just a few seconds earlier, as Saesee Tiin approaches the battle in his ship, it looks like the white dots in the distance are stars. Zoom in and you'll see that every single one is a massive spaceship. A simple yet effective way to show the scale of the biggest battle in Star Wars history.
- Grievous gives some more Nightmare Fuel during the Battle of Coruscant; heralding his appearance by stomping across the roof of Palpatine's office. Shaak Ti clearly realizes what is happening and urges Palpatine to come with her. Then the footsteps stop...and just as Palpatine claims that it was nothing, Grievous' head pops into view. It's slightly comical, yet also utterly terrifying.
- It's not the first time that he does this either; after dispatching several Magnaguards, Shaak Ti rejoins her fellow Jedi and reminds them that they have to leave - and the train that was behind her finishes passing, revealing Grievous standing right THERE.
- Then he manages to get to Palpatine's bunker ahead of them and lie in wait, appearing out of the darkness when he ignites his sabers.
- The scariest moment, however, has him as the victim. Grievous prepares to face Mace Windu... Who simply uses the Force to crush his ribcage. In a single instant, with a simple move that didn't even physically touch him, the unstoppable monster has been turned in someone who has to run against Jedi.
- Making this scarier is that Grievous had been warned about this: earlier, Dooku had told him that "If you are to succeed in combat against the best of the Jedi, you must have fear, surprise, and intimidation on your side. But if any element is lacking, it would be best for you to retreat", and Mace Windu demonstrated why-graphically.
- The very fact that the Battle of Coruscant is one giant smokescreen to allow Palpatine to get into position to enact the final stages of his master plan. He orchestrated an untold - but no doubt numerous - number of deaths solely to set in motion the chain of events that would lead to the fall of the Republic and Anakin becoming Darth Vader.
- Durge's Evil Laugh when Obi-Wan tries to stab him sounds very otherworldly and demonic.
Nightmare Fuel / Star Wars: Clone Wars