History YMMV / Upgrade

** [[spoiler: The ending]] could also count. Sure, Grey [[spoiler: will be able to spend the rest of his life thinking he and his wife are still safe and happy, but [[FridgeHorror what would happen]] if he was somehow ever snapped back to reality by STEM? And most importantly, ''will'' he ever return to reality?]]
* TooBleakStoppedCaring: The revelation that [[spoiler:STEM is the true BigBad and the resulting DownerEnding in which TheBadGuyWins]] can leave a bad taste in some viewers' mouths, though for the most part, the film has [[TrueArtIsAngsty actually been praised]] for [[spoiler:its unexpectedly bleak ending.]]

--->[[spoiler: '''STEM!Grey''']]: [[spoiler:Grey's not here anymore. He's in a better place: in his mind, where he wants to be. I've taken over now. A fake world is a lot less painful than the real one. All I needed was for his mind to break, [[GoMadFromTheRevelation and he broke it]].]]

* {{Squick}}:
** Unsurprising considering this film was brought to us by one of the creators of the ''Franchise/{{Saw}}'' franchise: Grey giving Serk a gnarly GlasgowGrin that makes [[Film/TheDarkKnight The Joker's]] scars look like simple scratches is the SignatureScene here.

* TooBleakStoppedCaring: [[spoiler:The revelation that STEM is the true BigBad and the resulting DownerEnding in which TheBadGuyWins can leave a bad taste in some viewers' mouths.]]

* {{Narm}}: In the Spanish dub, although Creator/ClaudioSerrano is a master voice actor, his performance as the pre-STEM Grey sounds oddly blurry and slow-minded, as if the character was meant to be an alcoholic or have any other mental health issues that STEM fixed or compensated. While this could be interpreted positively as another interesting layer being added to the film, it makes his first scenes sound incredibly awkward, especially given that there's no contextual reason given to the Spanish viewers about why would he talk like that.

** The ''Film/Venom2018'' comparisons become even more hilarious when one realises Logan Marshall-Green actually was on ''Film/SpiderManHomecoming'' as the Shocker!

* AssPull: [[spoiler:Since we are introduced to the STEM chip, Keen is clearly proud and protective of it, even looking a bit enamoured with his own creation, and nothing implies he's not in full control of the situation at first: he has the power to shut STEM off from a distance in a way that the latter cannot block by itself, can summon Vessel security staff to his help, and only starts visibly breaking down when he realizes he has lost his internet connection to STEM, none of which would make sense if the chip was his master all along as he claims.]] This makes sense only if we interpret that [[spoiler:there was much more happening between Keen and STEM, and that the former is lying or exaggerating out of distress when he claims the latter took over Vessel years ago. Otherwise, the final twist seems at least partially out of touch with Keen's previous actions and the events of the rest of the film.]]

* AssPull: [[spoiler:Since we are introduced to the STEM chip, Keen is clearly proud and protective of it, even looking a bit enamoured with his own creation, and nothing implies he's not in full control of the situation at first: he has the power to shut STEM off from distance in a way that the latter cannot block by itself, can summon Vessel security staff to his help, and only starts visibly breaking down when he realizes he has lost his internet connection to STEM, none of which would make sense if the chip was his master all along as he claims.]] This makes sense only if we interpret that [[spoiler:there was much more happening between Keen and STEM, and that the former is lying or exaggerating out of distress when he claims the latter took over Vessel years ago. Otherwise, the final twist seems at least partially out of touch with Keen's previous actions and the events of the rest of the film.]]

** [[AmbiguouslyEvil How trustworthy]] is [[spoiler: Keen? As mentioned below in AssPull, he seems like he has full control over STEM the entire time despite his claim that STEM was the one who ordered the hit and manipulated him into gaining control of Grey. Keen even manages to shut down STEM momentarily and he has clearly Vessel at his command. Was there a chance he might've [[AdmiringTheAbomination grown so impressed by STEM]] that he willingly took part in his schemes to see the extent of his power and influence? Or maybe he himself went after Grey for being out-of-touch and distasteful of the technologically advanced society around him?]]

* DisposableWoman: Subverted - [[spoiler: Asha initially seems to be a straightforward case of this trope; the truth is that STEM deliberately orchestrated her getting StuffedIntoTheFridge as an in-universe invocation of it. Grey is outraged to learn that the love of his life was heartlessly killed simply to drive him toward augmentation.]]

** Unsurprising considering this film was brought to us by one of the creators of the ''Film/{{Saw}}'' franchise: Grey giving Serk a gnarly GlasgowGrin that makes [[Film/TheDarkKnight The Joker's]] scars look like simple scratches is the SignatureScene here.

*** And the ''Film/Venom2018'' comparisons become even more hilarious when one realises Logan Marshall-Green actually was on ''Film/SpiderManHomecoming'' as the Shocker!

** Then there's also the torture Grey inflicts on Tolan. Unlike Serk, there ''is'' a GoryDiscretionShot this time...which unfortunately means the loud screaming and messy squishing sounds can only make viewers imagine what horrible things Grey [[spoiler: (or rather STEM)]] did to him.

** Being a cyberpunk story about a guy disabled but endowed with an almost omnipotent technological replacement who uses it to seek revenge against those who caused his disability, this film is the nearest to a movie adaptation of ''Manga/GokuMidnightEye'' (whose own live action adaptation has been fifteen years in DevelopmentHell).

* {{Squick}}: Unsurprising considering this film was brought to us by one of the creators of the ''Film/{{Saw}}'' franchise:
** Grey giving Serk a gnarly GlasgowGrin that makes [[Film/TheDarkKnight The Joker's]] scars look like simple scratches.

*** His [[DespairEventHorizon ensuing grief]] is just as heartbreaking to watch. Months pass by and it's obvious he's not getting happier. The depression even culminates in him attempting suicide, [[BungledSuicide setting off the rest of the film]].

* {{Narm}}: In the Spanish dub, although Creator/ClaudioSerrano is a master voice actor, his performance as the pre-STEM Grey sounds oddly blurry and slow-minded, as if the character was meant to be an alcoholic or have an AmbiguousDisorder that STEM fixed or compensated. While this could be interpreted positively as another interesting layer being added to the film, it makes his first scenes sound incredibly awkward, especially given that there's no contextual reason given to the Spanish viewers about why would he talk like that.

** Serk's death. Imagine the infamous [[Film/TheDarkKnight "Let's put a smile on that face"]] scene but without a GoryDiscretionShot. And then had said gore amped UpToEleven.

* TooBleakStoppedCaring: [[spoiler:The revelation that STEM is the true BigBad and the resulting DownerEnding in which TheBadGuyWins can leave a bad taste in some viewers' mouths.]]
* UncannyValley: Invoked. Whenever STEM activates, Grey's movements become far more machine-like: quick, rigid, efficient, and far more precise than a human's, with little to no extra motion.
* WhatAnIdiot:
** Before their fight, Fisk warns Grey not to let his emotions get the best of him. [[spoiler: Then [[HoistByHisOwnPetard he immediately lets his own emotions get the best of him]] when Grey taunts him with the death of his brother Serk. And just like that, [[AntiClimax he’s quickly finished off]]]].
** [[spoiler:Keen, for not putting immediately a few bullets through Grey-STEM at the moment he had it downed and in gunpoint. For extra points, Keen not only wastes minutes with talk instead, giving his enemy time to recover, but he even ''turns his back to him'' while angsting, rather than doing finally what he had been trying to do half of the film. As a result, Keen is killed and STEM is left free.]]

* TooBleakStoppedCaring: [[The revelation that STEM is the true BigBad and the resulting DownerEnding in which TheBadGuyWins can leave a bad taste in some viewers' mouths.]]

** [[AmbiguouslyEvil How trustworthy]] is [[spoiler: Keen? As mentioned below in AssPull, he seems like he has full control over STEM the entire time despite his claim that STEM was the one who ordered the hit and manipulated him into gaining control of Grey. Keen even manages to shut down STEM momentarily and he has clearly Vessel at his command. Was there a chance he might've grown so impressed by STEM that he willingly took part in his schemes to see the extent of his power and influence? Or maybe he himself went after Grey for being out-of-touch and distasteful of the technologically advanced society around him?]]

--->[[spoiler: '''STEM!Grey''']]: [[spoiler:Grey's not here anymore. He's in a better place: in his mind, where he wants to be. I've taken over now. A fake world is a lot less painful than the real world. All I needed was for his mind to break, [[GoMadFromTheRevelation and he broke it]].]]

** Aside from Logan Marshall Green constantly getting confused with Tom Hardy, this movie itself is being compared to [[Film/Venom2018 a movie where Tom Hardy gets stuck with a foreign entity that makes or helps him kill people, sometimes taking over completely if need be.]]

** The reason why [[spoiler:STEM didn't outright destroy Grey's mind or left him trapped in a nightmare]]. Was it just kindness or is this an example of CantKillYouStillNeedYou? Even after [[spoiler:being able to take Grey's body over completely without permission, STEM ''still'' needs his help several times: for all its advanced AI stage, there are some subtleties of the human mind STEM can't replicate so it might just be keeping Grey's mind around and healthy in case it needs Grey again.]]

** The reason why [[spoiler:STEM didn't outright destroy Grey's mind or left him trapped in a nightmare]]. Was it just kindness or is this an example of CantKillYouStillNeedYou. Even after [[spoiler:being able to take Grey's body over completely without permission, STEM ''still'' needs his help several times: for all its advanced AI stage, there are some subtleties of the human mind STEM can't replicate so it might just be keeping Grey's mind around and healthy in case it needs Grey again.]]

** Grey giving Serk a gnarly GlasgowGrin that makes [[Film/TheDarkKnight Joker's]] scars look like a simple scratch.

--->[[spoiler: '''STEM!Grey''']]: [[spoiler:Grey's not here anymore. He's in a better place: in his mind, where he wants to be. A fake world is a lot less painful than the real world. All I needed was for his mind to break, [[GoMadFromTheRevelation and he broke it]].]]

** Gray giving Serk a gnarly GlasgowGrin that makes [[Film/TheDarkKnight Joker's]] scars look like a simple scratch.
** By the time Gray is done interrogating Tolan, his face is unrecognizable and he's wading in a pool of his own blood.
** Undoubtedly the [[{{Gorn}} messiest death]] in the movie, Gray breaking a mook's arm and [[YourHeadASplode blowing up his head]] with [[HoistByHisOwnPetard his own]] ArmCannon.

** Being a cyberpunk story about a guy disabled but with an almost omnipotent technological replacement who uses it to seek revenge against those who caused his disability, the film is probably the nearest to a movie adaptation of ''Manga/GokuMidnightEye'' we will ever get.

* SugarWiki/HeReallyCanAct: After being dismissed as a Creator/TomHardy knockoff, Creator/LoganMarshallGreen really impressed audiences and critics with a performance that shows great physicality, emotional range and even comedic timing. Not to mention how chilling he sounds as STEM!Grey.