->''The alternate truth is yet to be found...''

''[=BlazBlue=]: Calamity Trigger'' is the first game of the ''VideoGame/BlazBlue'' series, created by Creator/ArcSystemWorks, later followed by ''VideoGame/BlazBlueContinuumShift''.

Long ago, a terrible monster called [[SealedEvilInACan "The Black Beast"]] appeared and began destroying everything in its path, spreading [[{{Mana}} a toxic substance called "seithr"]] across the planet and threatening to cause TheEndOfTheWorldAsWeKnowIt. Humanity was on the verge of extinction when a group known as the Six Heroes arose and developed weapons to fight the Black Beast: the "[[SufficientlyAnalyzedMagic Armagus]]", an artificial form of magic powered by seithr that anyone could use. With humanity empowered by the Armagus, the Black Beast was defeated and the Six Heroes disappeared into history. This event became known as the "First War of Magic", aka "The Dark War".

Humanity began reconstruction in low-seithr areas and formed the [[AsLongAsItSoundsForeign Novus Orbis Librarium]] [[note]]"New World Void Space Cue Administration Bureau"[[/note]] (otherwise known as the N.O.L. or "The Library") to [[TheGovernment govern the world]] and the grimoires that controlled the Armagus. However, the N.O.L. quickly grew into TheEmpire and [[TyrantTakesTheHelm began to abuse their power]], aiming to create a hostile monopoly on the Armagus grimoires. A [[LaResistance resistance movement]] attempted to rebel against the N.O.L's growing power in an event known as the Ikaruga Civil War (aka Second War of Magic), but were defeated. As a result, the N.O.L. imposed even harsher restrictions on the Armagus, making Armagus possession (outside of the N.O.L's own members) punishable by execution without trial.

In the year [[TwentyMinutesIntoTheFuture 2199]], several branches of the N.O.L. are suddenly destroyed by a OneManArmy known only as "[[NamesToRunAwayFromReallyFast Ragna the Bloodedge]]". Wielding a powerful Armagus called the ''Azure Grimoire'', he declares the start of a one-man war against the N.O.L. and their tyrannical grip on the world. In retaliation, the N.O.L. imposes the [[UndisclosedFunds largest bounty in history]] to anyone who kills him.

As news spreads that Ragna has arrived at the 13th Hierarchical City of Kagutsuchi, a ragtag bunch of N.O.L. operatives, bounty hunters and vigilantes straight from the DysfunctionJunction descend upon the city, each one seeking out Ragna for their own purposes. Meanwhile, Ragna heads for the dark secret lurking in the centre of Kagutsuchi, a single purpose resting in his heart.

The game uses a 4 button system: Weak Attack (A), Medium Attack (B), Strong Attack (C), and a unique Drive Attack (D) for each character.

The Arcade version of ''Calamity Trigger'' was released on November 20, 2008, and console ports for the UsefulNotes/{{PS3}} and UsefulNotes/XBox360 were released on June 30, 2009. The console version included online play, a new Story Mode that is set up somewhat like a VisualNovel, a new anime opening by J-Pop artist Kotoko as well as several new anime cutscenes, English voice acting, and much, much more. Console releases are sold in retail and premium editions which include a combo DVD, an artbook (several of these are now backordered, unfortunately), and a limited edition soundtrack, which includes every song in the game except for the main theme and the two extra songs for certain characters, and instead replaces them with remixes by rap artist Oh No. The European version was released much, much later. April 2nd, 2010, to be specific. As compensation, [[RegionalBonus it has all the DLC included for free]].

There's a PSP port, entitled ''VideoGame/BlazBlue: Calamity Trigger Portable'', and a Windows PC version of ''Calamity Trigger'', released for the Games for Windows platform on September 2, 2010. The latter is available for $35 and, much like the PAL release, [[DevelopmentHell for the fans who waited so long]], includes all of the console DLC for free. The same PC port was brought to UsefulNotes/{{Steam}} (albeit without GFWL parts or online VS.) on February 14th 2014, then later on April 14th to Website/GOGDotCom the same year.

!!Rebel 1, ACTION!
* AmericanKirbyIsHardcore: Or in this case, European Noel is Hardcore. The European cover shows Noel doing a pretty badass PistolPose with a dark brown background contrasting other covers' use of blue. The result makes it look more like a shooting game.
* AngerBornOfWorry: During the True Ending sequence, after [[spoiler:Noel saves Ragna from falling into the cauldron]].
* AnyoneCanDie: They can and often do in the story mode. [[strike:Including]] ''Especially'' the main character, Ragna, who often dies in ''his own'' path. [[spoiler:The GroundhogDayLoop makes it so that ''all'' of the endings are canon, while ensuring that no one is KilledOffForReal. In the True Ending, though, the loop finally gets broken and Nu-13 died in the process.]]
* BookEnds: The Ragna ending of Rachel's story mode ends with [[spoiler:the same]] tea in the courtyard that it began with.
* ComboBreaker: Barrier Burst is used; its use has the penalty of the user temporarily taking 1.5x damage and being unable to use Barrier Block for the rest of a round.
* CoverDrop: The seal depicted behind the [=BlazBlue=] logo (and on the game over screen) finally shows up in the story in [[spoiler:the True Ending, when Ragna activates his Azure Grimoire]].
* DidntSeeThatComing: Hakumen says a variant of this in his ''Calamity Trigger'' Arcade mode when [[spoiler:Nu-13 is the ninth fight, rather than the last one.]]
* GameplayAndStoryIntegration: Hakumen and Nu-13 are monstrously powerful in-story. This is reflected in Story and Arcade Modes by only having you face their [[SNKBoss Unlimited]] forms.
* GlamourFailure: In the True Ending of CT, [[spoiler: Hazama reveals that he is actually Yuuki Terumi.]] Interesting because his glamour failed more or less out of sheer enthusiasm.
* GroundhogDayLoop: All of the paths of the story mode in CT actually occur. It is implied that these events have been looping for some time and that Rachel is the only one of the main cast who is aware of it. [[spoiler:The True End finally breaks the loop.]]
* GroundhogPeggySue: Rachel. It is due to being an Observer that she can "feel" the time looping, unlike the others. However, she can't exactly do things all by herself to correct it; she works more on trying to nudge other characters to do the right thing to end the loop. [[spoiler:In the ending, Hazama/Terumi is revealed to be another one, and he also wants to end the time loop; unlike Rachel, however, he wants to turn the world for the worse. And as the loop is broken, the Takamagahara System summons Rachel for questioning.]]
* HamToHamCombat: Ragna vs. Jin. And [[NarmCharm you love them for it]].
* KickTheDog: [[spoiler:Jin kills Noel in his story mode. He's in crazy mode, so it's probably this trope.]]
* LongSongShortScene: "Love So Blue" (the vocal version of "Bullet Dance", Noel's theme) only plays for the [[spoiler:Noel vs. Nu battle in the true ending.]] One of the combatants has an infinite heat gauge for this battle, so it will be over in 10 seconds. Fortunately, it can be selected in VS mode.
* MultiPlatform: The console port, being released on [=PlayStation=] 3 and Xbox 360, followed by its port to Windows PC.
* PoorCommunicationKills: All of the people in the story who know ANYTHING about what's really going on are either the villains (Terumi, Takagamahara), enormous assholes who can't be bothered to explain anything even to their own allies (Kokonoe) or people who can't tell what's happening because of being Observers (Rachel). Jubei, Hakumen and Kokonoe know a lot more about the Azure Grimoire than they're telling Ragna, Jin or Tager.
** At one point, Rachel even outright mocks [[spoiler:Noel]] for all of the things Rachel knows that she doesn't know about herself, and then refuses to tell her anything.
* PowerUpMotif: Bang Shishigami's Fu-Rin-Ka-Zan is a SuperMode that works like this: When you activate it, his power-up music begins to play loudly over the stage BGM, until the next round begins.
* RankInflation: In Online mode, players are awarded ranks that change depending on the user's player level. Ranks change every 5 levels of inflation up to 50, then every 10 levels up to 90, and the last rank is reserved for level 95.
** Independent fighters (Ragna, Rachel, and Arakune) start off as "Dine n' Dashers", then get "Risk Ratings" of "F7" to "F0", then progress from "E" to "A", then into "S" and finally "SS"
** Vigilantes (Tao, Carl, and Bang) are given different colors for their titles. Starting with "Novice" and ending at "Purple".
** Sector Seven (Tager, Litchi, and Hakumen) are given various animals. Starting with "Errand Boy", then going from actual animals like "Wolf" and "Lion" to mythical creatures like "Leviathan" and "Phoenix".
** The NOL (Noel, Jin, and Nu) are given military ranks. From "Private" to "Commander", then to elite royal ranks such as "Centuriones" and "Praefectus".
*** LampshadeHanging: Due to lack of coding, once you reach level 100, every character's rank becomes "(null)". Yes, (null). Arcsys basically tells you you've wasted your time.
* RegionalBonus: The European version includes all of the DLC, free of charge.
* SeanConneryIsAboutToShootYou: The [[http://www.gamesetwatch.com/100112-blazblue-2.jpg European box art]] for ''Calamity Trigger'' shows Noel in her PistolPose.