History YMMV / SawIV

* NauseaFuel: The opening scene involving John's autopsy.

''YMMV/SawI'' | ''YMMV/SawII'' | ''YMMV/SawIII'' | '''''Saw IV''''' | ''YMMV/SawV'' | ''YMMV/SawVI'' | ''YMMV/Saw3D'' | ''YMMV/{{Jigsaw}}'' | ''[[YMMV/Spiral2021 Spiral]]'' | ''Film/SawX''-]]]]]

''YMMV/SawI'' | ''YMMV/SawII'' | ''YMMV/SawIII'' | '''''Saw IV''''' | ''YMMV/SawV'' | ''YMMV/SawVI'' | ''YMMV/Saw3D'' | ''YMMV/{{Jigsaw}}'' | ''[[YMMV/Spiral2021 Spiral]]''-]]]]]

* {{Padding}}: When the police and the FBI show up to the classroom with Morgan and Rex's corpse, Strahm saves Perez from getting hit by a spike which accidentally shot out from a crossbow that a forensic officer was dusting, only for an unnamed photographer to get impaled by it instead. This moment was criticized by many viewers as a gratuitous kill that adds nothing to the movie, for reasons including that the photographer was too much of a minor character to even have a death, her being placed there simply to have someone else get killed in place of Perez, and the fact that the rest of the police react with a minor OhCrap before simply moving on with the investigation as if nothing happened.

* ImprovedByTheReCut: A notable inversion. The film is the only installment in the ''Saw'' series whose theatrical version is regarded better than any Director's Cut/Uncut versions of it, due to the former version being notably more polished with exclusive shots that make some scenes more coherent (such as [[spoiler:Hoffman actually being seen untying himself from his chair]] at the end). ''Saw VI'' was the only other installment that got close to this reception, mostly because its Director's Cut made a change to the ending that was considered unnecessary.

* MoralEventHorizon: Ivan crossed this by raping at least three girls and keeping photos/videos of said women during ''and'' after the act like some kind of {{Sadist}}.

* ImprovedByTheReCut: A notable inversion. The film is the only installment in the ''Saw'' series whose theatrical version is regarded better than any Director's Cut/Uncut versions of it, due to the former version being notably more polished with exclusive shots that make some scenes more coherent (such as [[spoiler:Hoffman actually being seen untying himself from his chair]] at the end).

* {{Padding}}: When the police and the FBI show up to the classroom with Morgan and Rex's corpse, Strahm saves Perez from getting hit by a spike that accidentally shot out from a crossbow that a forensic officer was dusting, only for an unnamed photographer to get impaled by it instead. This moment was criticized by many viewers as a gratuitous kill that adds nothing to the movie, for reasons including that the photographer was too much of a minor character to even have a death, her being placed there simply to have someone else get killed in place of Perez, and the fact that the rest of the police react with a minor OhCrap before simply moving on with the investigation as if nothing happened.

* {{Padding}}: When the police and the FBI show up to the classroom with Morgan and Rex's corpse, Strahm saves Perez from getting hit by a spike that accidentally shot out from a crossbow that a forensic officer was dusting, only for an unnamed photographer to get impaled by it instead. This moment was criticized by many viewers as a gratuitous kill that adds nothing to the movie, for reasons including that the photographer was too much of a minor character to even have a death, her being placed there simply to have someone else get killed in place of Perez, and the fact that the rest of the police react with a minor OhCrap before just moving on with investigation as if nothing happened.

* {{Padding}}: When the police show up to the classroom with Morgan and Rex's corpse, a photographer.

* ItsTheSameNowItSucks: One of the biggest complaints about this movie is that it's basically a worse version of ''Film/SawIII'', with its protagonist being some background rando from the second and third movies being forced to go through the same challenges as Jeff in the previous film, only whereas that film took the time to develop his character and make sure the audience understood his plight, all the audience knows about Rigg is that he just wants to save everyone.

* SignatureScene: [[spoiler:Hoffman being revealed as another Jigsaw accomplice.]]

* RetroactiveRecognition: An interesting case between movies within the same franchise. While Creator/DevonBostick's involvement in the franchise is mostly known for him playing Brent Abbott in ''Saw VI'', he's the only actor in the franchise to have played more than one character. In this movie, he played a background character named Derek. According to an interview, he said that Derek [[WhatCouldHaveBeen was originally going to play a larger role]] in the movie, but was glad that it was cut so that he could play Brent later.

* RetroactiveRecognition: An interesting case between movies within the same franchise. While Creator/DevonBostick is mostly known for playing Brent Abbott in ''Saw VI'', he's the only actor in the franchise to have played more than one character. In this movie, he played a background character named Derek. According to an interview, he said that Derek [[WhatCouldHaveBeen was originally going to play a larger role]] in the movie, but was glad that it was cut so that he could play Brent later.

* AssPull: [[spoiler:Hoffman being an apprentice of Jigsaw]], as well as [[spoiler:the SequencingDeception with the previous movie]]. [[http://www.1000misspenthours.com/reviews/reviewsn-z/sawiv.htm 1000 Misspent Hours sums it up pretty well in this review.]]

''[[YMMV/SawI Saw]]'' | ''[[YMMV/SawII Saw II]]'' | ''[[YMMV/SawIII Saw III]]'' | '''''Saw IV''''' | ''[[YMMV/SawV Saw V]]'' | ''[[YMMV/SawVI Saw VI]]'' | ''[[YMMV/Saw3D Saw 3D]]'' | ''[[YMMV/{{Jigsaw}} Jigsaw]]'' | ''[[YMMV/Spiral2021 Spiral]]''-]]]]]

* [[YMMV/{{Saw}} Main franchise]]
* ''[[YMMV/SawI Saw]]''
* ''YMMV/SawII''
* ''YMMV/SawIII''
* ''YMMV/SawV''
* ''YMMV/SawVI''
* ''YMMV/Saw3D''
* ''YMMV/{{Jigsaw}}''
* ''YMMV/{{Spiral|2021}}''