Yes, this game has so many examples, it warrants its own page. The cast of ''Franchise/BlazBlue'' is just as varied as any, with character archetypes ranging from the AntiHero JerkWithAHeartOfGold to the ShrinkingViolet PersonOfMassDestruction to the FauxAffablyEvil {{Troll}}. The things that set them all off are just as varied, and you had best tread lightly on these particular issues if you know what's good for you.

Some of these issues have backstory explanations, which will be explained accordingly.

'''New clause states that rational berserk buttons (disrespect, abuse, threatening a loved one) are not allowed, unless the response is disproportionate. This page, and the others, are for ''irrational'' berserk buttons.'''
%% These berserk buttons will be commented out, so people don't just re-add them.

%%[[foldercontrol]]

[[folder: Ragna the Bloodedge ]]

%%* Ragna is mostly indifferent to those around him as a defense mechanism [[HumanResources due to the nature of his powers]]. However, he wants to shove [[{{BFS}} Blood-Scythe]] up the ass of Yuuki Terumi [[BestServedCold for ruining his childhood in one traumatic night]]. That is all that needs to be said.
%%** Let Ragna idle during a fight with Terumi and you hear this...
%%--> "They'll never find your body."
%%* As of ''Chronophantasma'', he gains a new one in the form of Celica. Harm her in his presence, and they'll be cleaning up what's left of you with a mop. He nearly flipped when Azrael [[spoiler:attacked Celica in an attempt to force him to activate his Azure Grimiore]]. And he nearly strangled Kokonoe when she [[spoiler:wanted to use Celica for Kushinada's Lynchpin with the full knowledge it would kill her]].
%%* Also, don't harm Noel in his presence either, especially after the events of ''Continuum Shift''. [[spoiler:He broke a locked door linked to an otherwise different spatially-separated dimension down by ''slamming into it'' when he heard her calling out to him in fear when Arakune attacked her - this despite Celica suppressing his power.]] The only reason he didn't proceed to open a can of whoop-ass was because [[ColonelBadass Kagura]], his own BerserkButton pressed, beat him to it.
%%* When the Imperator taunts him by speaking in Saya's voice he ''completely snaps'' to the point the arcade boss theme starts to play and he's ready to fight right then and there despite Rachel's strained pleas for him to run.
%%* ''Central Fiction'' reveals another one. Do not hurt Rachel. [[spoiler:When he learns that Hazama has been torturing her, Ragna goes into a rage so intense that, if not for Naoto's intervention, '''would have turned him into the Black Beast'''.]]

[[/folder]]

[[folder: Jin Kisaragi ]]

* Jin was neglected by Ragna when Saya became ill for reasons currently unknown, and [[GreenEyedMonster felt resentment towards her]] for stealing his ''nii-san'' away from him. [[IrrationalHatred Any who share her appearance (like Noel and Nu)]] are [[DrivenByEnvy automatically treated worse]] [[JerkassToOne than his usual treatment towards everyone else]] as a result.
* On that subject, he will do anything it takes to [[TheOnlyOneAllowedToDefeatYou get you out from between him and Ragna]]. [[spoiler:In ''The Wheel of Fortune'', Tsubaki learned this the hard way.]]
%%* Jin also has feelings for Tsubaki Yayoi, though he normally chooses not to admit them -- if you feel like hurting her, your death will be [[AnIcePerson cold]], slow, and very painful indeed.

[[/folder]]

[[folder: Noel Vermillion ]]

%% Doesn't explain what the reaction is. * Noel has always felt... [[ACupAngst inadequate]] around her peers. Don't bring it up.
%% Doesn't explain what the reaction is.* Don't mistake her for a boy. Bang and Amane learn this the hard way.
-->'''Noel''': "[[/folder]]

[[folder: [[Emotionless Girl ...Target deemed hostile. ]]
[[MachineMonotone Commencing termination.]]]]"
%%* Feel like hurting Tsubaki? She'll gun you down without a second thought. [[spoiler:Terumi uses this as his means to turn her into Mu-12 in ''Continuum Shift''.]]

[[/folder]]

[[folder: Rachel Alucard ]]

* While Rachel is usually quite condescending to those around her, she means well, [[{{Tsundere}} especially towards Ragna]], who she brought into the conflict. Best to leave that unsaid unless you want to stand in a lightning storm.

%%[[/folder]]

[[folder: Taokaka ]]

%%* Taokaka will beat the crap outta "Squiggly" (Arakune) on sight due to his frequent attacks on her village.

[[/folder]]

[[folder: Iron Tager ]]

%%* Having been reconstructed by Kokonoe, Tager's loyalty to her [[UndyingLoyalty knows no bounds]]. Disrespecting her isn't something he takes lightly, so if you decide to badmouth her in earshot of him, pray she calls him off.
%%* In ''Chronophantasma'', he also gets pretty pissed and is unable to focus on his mission when he sees [[spoiler:Bullet]] getting beaten up. That's because [[spoiler:he and Bullet used to be part of the same mercenary group before his entire squad was wiped out]], but he has no memories from before he was rebuilt by Kokonoe, so he doesn't even know why he's mad.

%%[[/folder]]

[[folder: Litchi Faye-Ling ]]

%%* Litchi Faye-Ling and Roy "Arakune" Carmine were close colleagues during their tenure in Sector Seven, and when the latter tampered with the Boundary and wound up... [[WasOnceAMan disfigured]], Litchi quit her job and went out to search for him. The more you insist she leave him to his fate, the more willing she will be to silence your complaints. This includes physical force.

[[/folder]]

[[folder: Arakune ]]

* One of the reasons Arakune became what he is is due to his inferiority complex to Kokonoe[[spoiler:, something which Relius Clover fostered]]. His trip into the Boundary to tamper with the Azure drove him batshit insane -- mentioning Kokonoe to him (or, as of ''Chronophantasma'', her being around him) turns it a whole new shade of ugly.

%%[[/folder]]

[[folder: Bang Shishigami ]]

%%* Bang is loyal to Lord Tenjou to the end, and one of his lifelong goals was to bring his killer Jin Kisaragi to justice. He was willing to fight Jin on sight until Platinum talked him out of it. He will postpone the fight if Jin is injured, however.
%%* If Bang believes you are a threat to his beloved Miss Litchi, he will beat your ass into the ground by any means necessary. This is usually gag reel material, but events in ''Chronophantasma'' have given this frenzy switch a more serious turn.
%%* ''Do not hurt a child in front of Bang for any reason at all''. He will do anything in his power to make you stop, even if he must break [[ThouShallNotKill his vow to Lord Tenjou]] to make it happen.

[[/folder]]

[[folder: Carl Clover ]]

%% Doesn't explain what the reaction is. * Carl's anger issues come from the childhood trauma of [[HarmfulToMinors having to service Deus Machina: Nirvana, who his sister Ada was moved into]]. He is also a known gadgeteer, so disrespect towards her translates into "Please use all of your deadly toys on me, young master!"
%%** Attempts to separate the two end with you in a bloody heap.
%%* Carl also has issues with adults due to said incident. If you're one, be nice to him (Bang and Litchi usually are).
%%** He also hates if anyone doesn’t treat Nirvana as if she’s Ada. Even calling her Nirvana will cause him to yell at you that [[NeverSayThatAgain Nirvana is not her name]] (although he might not attack you on the spot if you apologize and correct yourself).
%%** The instigator of this incident is Carl's own father, Relius Clover, who put Ada into Nirvana in the first place and left her half-done. [[ItsPersonal Carl has never forgiven him for this]].
* If he suspects you know anything about Relius' whereabouts, you have three choices: tell him, get the fuck out, or die.

%%[[/folder]]

[[folder: Ada "Nirvana" Clover ]]

%%* Nirvana doesn't really show much sentience, but just as Carl is fiercely protective of her, she's is equally protective of him. Harming Carl in her presence is basically wearing a "Kill Me" sign on your neck and will most likely be met with WolverineClaws to your throat.

%%[[/folder]]

[[folder: Hakumen ]]

%%* Hakumen cares dearly for Tsubaki Yayoi [[spoiler:due to him being a past incarnation of Jin Kisaragi]]. Do not harm her unduly in front of him. '''You will die'''.
%%** Hakumen will kill Nu on sight [[spoiler:due to [[MyGreatestFailure murdering his iteration of Tsubaki]].]] Not even ''Celica'' can talk Hakumen out of this one.
%%* Hakumen also hates Terumi for the bullshit he pulled with the Six Heroes in the past, and intends to kill him over it. [[spoiler:By the end of ''Chronophantamsa'', he succeeds.]]

[[/folder]]

[[folder: v-No.13- ]]

* Between the Azure Grimoire's urgings to become whole and the lingering fragments of Saya's personality within her, Nu will do anything to be with Ragna. Do anything to interfere ([[DisproportionateRetribution being female]] is enough), and [[{{Yandere}} you will be skewered]]. [[spoiler:Right, Tsubaki?]]
* She has one that only Ragna can press. [[spoiler:When he denies their relationship being TheMasochismTango and claims that she wants him to save her, she threatens to kill him for real]].
* There's one bit in ''Central Fiction'' where she meets Naoto Kurogane, who bears a striking similarity to Ragna. At first, she's her typical {{Yandere}} self... and then she realises the boy standing in front of her isn't Ragna. Nu-13 consequently goes into a hysterical screaming fit and tries to slice him to ribbons. Thank God for his HealingFactor.
-->''"SHUT UP SHUT UP SHUT UP!! You're different! YOU'RE NOT RAGNA!!"''

[[/folder]]

[[folder: Tsubaki Yayoi ]]

%%* Tsubaki grew up lonely with House Yayoi, and only Jin got to interact with her. As a result, she loves him with all her heart. She can be quite vocal if you try to get between them, and [[spoiler:as long as she's dirtied from Terumi's MindRape,]] [[MurderTheHypotenuse she would kill her best friend]] over this.
%%** On the subject, don't harm Jin in front of her, or she will turn on you. Try to force her into harming him, and she will resist you. [[spoiler:Even if you're Izanami.]]
* The mere existence of Ragna The Bloodedge is this to her. She thinks it’s his fault that Jin and Noel betrayed the NOL (which is [[MetaphoricallyTrue technically true]]). In fight intros [[IrrationalHatred she says that]] '''everything wrong in the entire world''' is his fault (which, again, is technically true[[note]]The Black Beast - which was why things went wrong in the entire world - was the result of Ragna and Nu merging[[/note]] but she doesn't know that).

[[/folder]]

[[folder: Hazama / Yuuki Terumi / Susano'o ]]

* Terumi's {{Pride}} is the core of his rage, as his ego bubble is the size of Ikaruga itself. The more you damage [[ItsAllAboutMe his overblown self-image]], the more violent he will become with you. In order of increasing magnitude:
** If he wants to torture someone for whatever reason, [[BigDamnHeroes don't interfere]]. Best case, he will swear his head off. Worst case (like if you stick around), he will turn his knives on you.
** Feel like using his own words against him or directly attack his self-image? He skips straight to violence. If he can kill you, he probably will unless you hightail it out of there.
** Terumi ''hates'' being a tool for someone else's designs. If you put him under your control for any reason at all, that leash better be on tight if he's aware of it. [[spoiler:He manipulated Trinity into having Mind Eater lifted so that he could kill Nine - that she wanted to depower the Nox Nyctores and investigate his work with the Black Beast gave him more of a reason to want to kill her. Trinity died merely because she was an accessory.]] This issue stems from [[spoiler:his eternal loathing of the Origin and the Amaterasu Unit, who he abhors for her incessant recurrence of "this worthless comedy" that is the events of the series, and he believes he can do better for reasons unexplained.]]
** Terumi's bloated self-image extends to his ability to [[ManipulativeBastard control the cast]]. Compromise that and he will drop everything to torture and/or kill you. [[spoiler:When Carl went off-track in his bad ending, Terumi went apeshit and butchered Ada before breaking Carl completely, killing him only after he was done with him.]] Because of this and the first trigger mentioned above, Rachel is a constant BerserkButton for him.
*** Worse, if you unmake his work with the cast and ruin his plans, his grudge against you will transcend time and space. [[spoiler:This rare combination has only been managed by Makoto Nanaya, and he '''will''' try to kill her within the first five minutes of contact.]] This berserk button is so absolute that [[spoiler:Hazama inherits it after he permanently splits off from Terumi, and]] the only reason Terumi can't act on it in ''Centralfiction'' is because [[YourDaysAreNumbered he has bigger problems to worry about]].

%%[[/folder]]

[[folder: Makoto Nanaya ]]

%%* Makoto has faced enough shit about beastkin during her childhood. She will snap back at your discriminatory practices, though she won't get violent over it.
%%** [[TrueCompanions Noel and Tsubaki]] are her closest friends for trying to be there for her through said discrimination, and she reciprocates with them in kind. Do not '''ever''' visit undue harm upon them - [[spoiler:even if she needs a month and a proxy to pull it off,]] you and your circuitous plans [[DidntSeeThatComing are going down in flames]].
%%* On a more lighthearted note, any attempt to grope her will be met with immediate violence. Many times throughout ''Chronophantasma's'' Story Mode, Makoto has had to [[GroinAttack shove]] [[HandsomeLech Kagura's]] [[GroinAttack raging dragon back into his pants]].
%%--> "You need to die."
%%** Related to that is implying that Kagura’s statement about their one night stand is true, which results in [[SuspiciouslySpecificDenial uncharacteristic defensive outbursts]].

%%[[/folder]]

[[folder: Valkenhayn R. Hellsing ]]

%%* Valkenhayn watches over Madame Rachel as per the whims of his master Clavis Alucard, [[UndyingLoyalty who he is dearly loyal to]]. Treat her with respect around him.
%%** Anyone [[spoiler:other than Tsubaki as a last resort]] who tries to visit harm upon Rachel will [[UnstoppableRage know his wrath, unfettered and raw]].
%%* Like Hakumen, Valkenhayn has no respect for Terumi for his actions with the Six Heroes, and will not hesitate to claw the taste out of his mouth.

[[/folder]]

[[folder: Platinum the Trinity ]]

* Luna has both a massive attachment to Mister Jubei and, despite her age, an equally massive case of ACupAngst. Litchi winds up triggering both in ''Scapegoat''.
%%* Even more than Yuuki Terumi, Trinity can never forgive [[spoiler:herself]] for [[spoiler:her hand in releasing him from Nine's control.]] Doesn't mean she likes the bastard.

[[/folder]]

[[folder: Bullet ]]

** Her issue with Kokonoe was that her captain [[spoiler:(Tager)]] was moved into her lab. If you know anything about Kokonoe's whereabouts (whether you work with Sector Seven or [[InsaneTrollLogic are a]] [[FantasticRacism beastkin]]), she will get answers from you even if she has to force them out.
** Her issue with Relius is due to his hand in setting up that ill-fated mission and his association with Kokonoe.
** She also has issues with Tsubaki due to the Zero Squadron's involvement in the mission. [[FridgeHorror This could take darker undertones when one remembers that House Yayoi resides in Naobi.]]
* Also, thanks to a NoodleIncident involving Amane mistaking her squadron for a dance troupe and forcing them to dance for three days straight, she's developed a lethal grudge against him. If she so much as catches a glance of him, she '''''will''''' kill him on sight.
* Bullet doesn't take lightly to comments about her uniform, either. Two words: Butt Floss.

[[/folder]]

[[folder: Azrael ]]

* If Azrael fights you, he will be disappointed if [[BloodKnight you can't put up a good fight]]. If you prove to put up a good fight and then stop, he will get pissed. [[spoiler:Kagura uses this against him to get him locked away again.]]
** Kokonoe was involved with Azrael's initial imprisonment, and his only lapse in his restraints centers on her and Tager. It is implied he kills Tager and plans to do the same with Kokonoe if he wins their match.
---> ''"Don't worry... Kokonoe's next."''

[[/folder]]

[[folder: Kokonoe ]]

* Whatever the circumstances are regarding her disdain for the magic she inherited from her mother, Kokonoe doesn't take lightly any comments that favor it over science.
%%* Given that Nine was her mother, Kokonoe wants to bag Terumi herself. Needless to say, she won't put up with his shit.
* Of course, she won't hesitate to flip out if [[TheOnlyOneAllowedToDefeatYou you say anything that can be translated as "I'm going to kill Terumi first".]]
%%* Like Noel, Kokonoe has some [[ACupAngst self-image issues]] as well, and only refrains from going nuts around Litchi. Even when she does, it's PlayedForLaughs, as it tends to be gag reel and FourthWallMailSlot material.

%%[[/folder]]

[[folder: Kagura Mutsuki ]]

%%* Kagura is normally a chilled, laid-back dude. However, when [[spoiler:Arakune attempts to consume Noel]], he declares that he'll kill him with the most uncharacteristically furious and antagonistic tone you will ever hear from the guy. Even Ragna is overwhelmed by his outburst. [[ChivalrousPervert Skirt-chaser he may be]], [[JerkWithAHeartOfGold let it never be said that he doesn't care about women as people]].
%%** In general, harm a woman in his presence and the final minutes of your life will be agonizing.

[[/folder]]

[[folder: Konoe "Nine" Mercury / Nine the Phantom ]]

* [[http://img2.wikia.nocookie.net/__cb20130629232117/blazblue/images/2/22/Celica_A._Mercury_%28Story_Mode_Artwork%2C_Normal%29.png This]] is Celica A. Mercury. Nine loves her a lot, and will never condone anything resembling bringing harm to her. Unfortunately, as this [[https://vignette.wikia.nocookie.net/blazblue/images/b/b4/BlazBlue_Phase_0_(Colored_illustration%2C_3).png pic]] shows, her definition of "harming" Celica is very loose (and, yes, simply [[AllMenArePerverts being male]] in Celica's presence is ''all it takes''), and her wrath does not come lightly. Trinity is one of the few people who can talk her down; better hope she does it quickly.
* Nine also has issues with her father, Shuichiro Ayatsuki, for abandoning her and Celica when they were kids. While she won't get violent about it, it would be best not to bring it up.
** On a similar note, because of the aforementioned DaddyIssues, she dislikes her real name Konoe. Call her by her real name and she will angrily insist you call her Nine.
%%* Ever since he [[spoiler: shanked her and turned her into Phantom]], she's had a '''really''' vehement grudge against Terumi. Hakumen notes that only her, Ragna and Kokonoe have enough hatred on their own to keep Terumi in this world.
* Nu's arcade run in ''Central Fiction'' reveals that Nine is ''very'' sensitive about her age. And unless you want to spend the final minutes of your life burning in agony, you would do well to not bring it up. Nu learned this the hard way.

[[/folder]]

[[folder: Izanami ]]

* Izanami is an affable person and very hard to anger. She only asks that under no circumstances are you to refer to her as [[spoiler:Saya]]. As in, '''''ever.''''' (Unless you're [[spoiler:Ragna]]) Anyone unfortunate to do that quite literally signs their own death warrant.

----