History Trivia / Ketsui

** ''DX'' was released only on Japanese mobile phones, and its Switch port is also Japan-only with no plans for an overseas release.
** ''Ketsui: DEATH Label'' as well, but it can be played on any region DS.
** The Xbox 360 version, and ''not'' as a region-free release.
** The UsefulNotes/PlayStation3 port has no region lock.

* WhatCouldHaveBeen: A UsefulNotes/PlayStation2 port by Arika was planned, but cancelled, reportedly because the [=PS2=] doesn't have the memory needed to do the background swapping in Stage 5[[note]]at two points, the scrolling goes in the opposite direction, but the background changes to give the impression of descending down a shaft and then moving forwards after the descent[[/note]] and Arika vice president Ichiro Mihara decided he would rather have no port.

* MarthDebutedInSmashBros: The game's characters and ships made their first appearance in Europe in the ''[[VideoGame/DonPachi DoDonPachi]] [=DaiFukkatsu=] BLACK LABEL'' arrange mode, with ''[=DaiFukkatsu=]'' being released there in 2011, and in the rest of the world in 2013 with the inclusion of the Tiger Schwert in ''[=DoDonPachi=] Maximum''. ''Ketsui'' itself would not be released internationally until 2020.

* MarthDebutedInSmashBros: The game's characters and ships made their first appearance outside of Japan in the ''[[VideoGame/DonPachi DoDonPachi]] [=DaiFukkatsu=] BLACK LABEL'' arrange mode, which is a crossover with ''Ketsui'', as well as a DLC pack for ''VideoGame/{{Darius}}burst Chronicle Saviours''. ''[=DaiFukkatsu=]'' was released in Europe in 2011 and in North America in 2016, and ''DBCS'' in 2015, but ''Ketsui'' itself would not make its international release until 2020.

* MarthDebutedInSmashBros: The game's characters and ships made their first appearance outside of Japan inthe ''[[VideoGame/DonPachi DoDonPachi]] [=DaiFukkatsu=] BLACK LABEL'' arrange mode, which is a crossover with ''Ketsui'', as well as a DLC pack for ''VideoGame/{{Darius}}burst Chronicle Saviours''.

* ChannelHop: The game repeatedly gets handed off to different companies for spinoffs and ports. The ''Death Label'' spinoff was developed by Creator/{{Arika}}, the ''EXTRA'' port by 5pb, and the ''Deathtiny'' port by M2.

** ''DX'' was released only on Japanese mobile phones, and its Switch port will also be Japan-only with no plans for an overseas release.

* ChannelHop: The game routinely gets handed off to different companies to do spinoffs and ports of the game. The ''Death Label'' spinoff was developed by Creator/{{Arika}}, the ''EXTRA'' port by 5pb, and the ''Deathtiny'' port by M2.

* NoExportForYou: The original arcade version was released in Japan only. ''Ketsui: DEATH Label'' can be played on any region DS, but as for the UsefulNotes/{{Xbox 360}} port of the original game, you'll need a Japanese 360 (or a modified one, if you're willing to risk getting banned from Xbox Live). The UsefulNotes/PlayStation3 port has no region lock.

* RefittedForSequel: [[Administrivia/TropesAreFlexible For a certain definition of "sequel"]]; the DummiedOut voice lines "Watch out, watch out!", "Just a couple more shots!" and "Game over!" were implemented into ''VideoGame/DoDonPachi Maximum'', which features content from various Creator/{{CAVE}} games (not just ''[=DoDonPachi=]''). Both lines play when using the Tiger Schwert, the former when a boss is nearly dead and the latter for, well, a game over.

* RefittedForSequel: [[Administrivia/TropesAreFlexible For a certain definition of "sequel"]]; the DummiedOut voice lines "Just a couple more shots!" and "Game over!" were implemented into ''VideoGame/DoDonPachi Maximum'', which features content from various Creator/{{CAVE}} games (not just ''[=DoDonPachi=]''). Both lines play when using the Tiger Schwert, the former when a boss is nearly dead and the latter for, well, a game over.

* LateExportForYou: The game was not released outside of Japan until 2020, 17 years later, by way of the localized ''M2 [=ShotTriggers=]'' port for [=PS4=]. And even that version is an example unto itself, as the Japanese version was released in 2018 and was not released overseas until 2020.

* WhatCouldHaveBeen: A UsefulNotes/PlayStation2 port by Arika was planned, but cancelled, reportedly because the [=PS2=] doesn't have the memory needed to do the background swapping in Stage 5[[note]]at two points, the scrolling goes in the opposite direction, but the background changes to give the impression of descending down a shaft and then moving forwards after the descent[[/note]] and Arika vice president Ichiro Mihara decided he would rather have no port than a slight PortingDisaster.

* LateExportForYou: The game was not released outside of Japan until 2020, 17 years later, by way of the localized ''M2 [=ShotTriggers=]'' port for [=PS4=].

* NoExportForYou: The original arcade version was released in Japan only. ''Ketsui: DEATH Label'' can be played on any region DS, but as for the UsefulNotes/{{Xbox 360}} port of the original game, you'll need a Japanese 360 (or a modified one, if you're willing to risk getting banned from Xbox Live). The UsefulNotes/PlayStation3 port have no region lock.

* MarthDebutedInSmashBros: So far, the only significant cameos that the game has made [[NoExportForYou outside of Japan]] are in the ''[[VideoGame/DonPachi DoDonPachi]] [=DaiFukkatsu=] BLACK LABEL'' arrange mode, which is a crossover with ''Ketsui'', as well as a DLC pack for ''VideoGame/{{Darius}}burst Chronicle Saviours''.
* NoExportForYou: ''Ketsui: DEATH Label'' can be played on any region DS, but as for the UsefulNotes/{{Xbox 360}} port of the original game, you'll need a Japanese 360 (or a modified one, if you're willing to risk getting banned from Xbox Live). The UsefulNotes/PlayStation3 and UsefulNotes/PlayStation4 M2 Shottriggers ports have no region lock.

* NoExportForYou: ''Ketsui: DEATH Label'' can be played on any region DS, but as for the UsefulNotes/{{Xbox 360}} port of the original game, you'll need a Japanese 360 (or a modified one, if you're willing to risk getting banned from Xbox Live). The UsefulNotes/PlayStation3 and UsefulNotes/PlayStation4 M2 Shottriggers port have no region lock.

* NoExportForYou: ''Ketsui: DEATH Label'' can be played on any region DS, but as for the UsefulNotes/{{Xbox 360}} port of the original game, you'll need a Japanese 360 (or a modified one, if you're willing to risk getting banned from Xbox Live). The UsefulNotes/PlayStation4 M2 Shottriggers port is also Japan-only. The UsefulNotes/PlayStation3 port has no region lock.

* NoExportForYou: ''Ketsui: DEATH Label'' can be played on any region DS, but as for the UsefulNotes/{{Xbox 360}} port of the original game, you'll need a Japanese 360 (or a modified one, if you're willing to risk getting banned from Xbox Live). The UsefulNotes/PlayStation3 port has no region lock.

* NoExportForYou: ''Ketsui: DEATH Label'' can be played on any region DS, but as for the Xbox 360 port of the original game, you'll need a Japanese 360 (or a modified one, if you're willing to risk getting banned from Xbox Live).
** May finally be averted with the announcement of a PS3 version. Even if it's Japan only, the Sony doesn't enforce a region lock policy for the console, meaning gamers can easily import a copy.

* WhatCouldHaveBeen: A UsefulNotes/PlayStation2 port by Arika was planned, but cancelled, reportedly because the [=PS2=] doesn't have the memory needed to do the background swapping in Stage 5[[note]]at two points, the scrolling goes in the opposite direction, but the background changes to give the impression of descending and then moving forwards after the descent[[/note]] and Arika vice president Ichiro Mihara decided he would rather have no port than a slight PortingDisaster.

** May finally be averted with the announcement of a PS3 version. Even if it's Japan only, the Sony doesn't enforce a region lock policy for the console, meaning gamers can easily import a copy.