- Raiden's Jack the Ripper persona is an Ax-Crazy sociopath who gets off on killing and slicing into people as well as being stabbed himself. At the end of the Jack The Ripper trailer, Raiden even maniacally laughs as he slices down multiple foes. To quote the man himself: "Pain. This is why I fight."
Raiden: That nickname that you love so much... Wanna know how I got it? Actually... Why don't I give you a demonstration? I think it's time for Jack... TO LET 'ER RIP!
- The fact that laughing puts Raiden right in the Uncanny Valley as his jaw just flaps about like a crazy skull puppet.
- He's so crazy that even Monsoon is frightened by him. One of the possible lines from Monsoon when you finally finish him off has him frantically pleading for Raiden to stop.
- The completely deranged facial expressions Raiden makes as he speaks in an equally frightening rasp.
- Raiden's Slasher Smile is extra creepy, as his lower jaw has no skin or lips.
- In this trailer you can see him adjusting his dislocated jaw.
- Some of the members of the Winds of Destruction, namely Monsoon and Mistral.
- Mistral is Multi-Armed and Dangerous and can get new arms from mini-gekkos.
- Monsoon can break his body apart as necessary, suggesting, like Raiden, most of his body from the neck down is gone.
- While not as immediately terrifying as the others, Sundowner can be pretty scary too, mainly the sheer, unadulterated glee he shows when he gets into a fight and his ungodly creepy Slasher Smiles.
- The "Make it Right" viral ad campaign, a series of live-action trailers depicting Raiden undergoing surgery and experiencing various flashbacks. The disturbing imagery is what makes these ads Nightmare Fuel.
- The whole encounter with Jetstream Sam during the prologue chapter. Sam slashes Raiden's eye out and slices off his arm, then the game screen becomes screwy and static-y as Raiden is struggling to move and has incredibly low health, and Sam slowly creeps up on him...
- When Raiden has to fight against enemy cyborgs while being forced to hear their horrified thoughts at having to engage him, and later enters Ripper Mode for the first time in game after Monsoon and Sam's combined Breaking Speech, moments after being impaled through the stomach and disabling his pain inhibitors. The entire scene becomes awash in black and white as his right eye snaps open and seconds later a trio of mooks has been forcefully separated from their torsos via sword as our hero cackles maniacally.
- Senator Armstrong after he activates his nanites. His eyes turn red, his arteries bulge out and cover his body, and every time he needs to deliver a haymaker or gets hit by Raiden, his skin turns a mechanical gray for a second before going back. After getting used to thinking of him as a politician in a suit, it's rather freaky to see him reveal himself as something akin to a more obviously inhuman cyborgs. Unlike most, it's not Cyborg tech but Nanomachinesnote . Even worse, if you look closely at his skin near where the greyish color ends, you can see red and veins on his skin. This can have the effect of looking like blood, almost as if the Nanomachines are tearing the armor through his skin, then regnerating him at high speed.Senator Armstrong: "Nanomachines, son."
- The rooms full of human brains placed into cyborg casings in the third and fifth chapters. They're brains stuck into little casings with just a pair of separate eyes and a dangling spine like device. The still living brains are terrified in this state, and when you enter a room full of them, they all stare at you at once. The fact that these brains once belonged to kidnapped children makes it all the worse.
- In the Denver server room even more brains are shown, and Sundowner even strokes one as it undulates in muted terror.
- Performing Zandatsu on Senator Armstrong. While it is very much awesome, you were previously ripping out fuel cells from cyborgs. The final battle has you ripping out someone's nanomachine-laced heart and crushing it while it still beats.
- How Sam loses his arm. He slices off Armstrong's hand, leaving a crude, black-armored point. Armstrong knocks him to the floor and drives the sharpened point through his shoulder. The normally cool and collected Sam has a look of absolute horror on his face, and there's a shot of the arm twitching in its death throes and going limp.
- The Mastiff, an ape-like Unmanned Gears. Mix that with a Blackout Basement level in the underground railroad in R-03, and you're in for a pretty scary experience.
- Even the MUSIC for the game can be scary. Case in point; Collective Consciousness, the semi-final boss theme, is utterly terrifying. Heavy beats, screeching dubstep sounds and guitars, distorted electronic noises, and the brutally fast pace all make it really intimidating. And the lyrics are frightening too, speaking of keeping the masses under control while the world falls apart around them, sounding like something that would fit the Law faction in Shin Megami Tensei. Those growling voices near the end DO NOT HELP.Let your country control your mind!
LET YOUR COUNTRY CONTROL YOUR SOUL!
- Speaking of those last two lines, the latter finishes off the song in an INCREDIBLY creepy way.
- The early concepts of Senator Armstrong's nanomachine enhancements◊ were absolutely terrifying.
- Khamsin's arms look almost like exposed muscle.
Nightmare Fuel / Metal Gear Rising: Revengeance