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[[caption-width-right:250:No doubt, only the strongest will survive this TV Tropes page!]]

Known in Japan as ''Gōketsuji Ichizoku'' ("Gōketsuji Clan"), ''Power Instinct'' is a FightingGame series by Creator/{{Atlus}}.

The games in this series are the following
* ''Power Instinct'' / ''Gōketsuji Ichizoku'' (1993; Arcade/Genesis/SNES)
* ''Power Instinct 2'' / ''Gōketsuji Ichizoku 2'' (1994; Arcade/[=PlayStation=])
* ''Gogetsuji Legends''[[note]]sometimes called ''Power Instinct Legends''[[/note]] / ''Gōketsuji Gaiden: Saikyou Densetsu'' (1995; Arcade)
* ''Groove on Fight'' / ''Gōketsuji Ichizoku 3: Groove on Fight'' (1997; Arcade/Saturn)
* ''Matrimelee'' [[note]]also known as ''Power Instinct Matrimelee''[[/note]] / ''Shin Gōketsuji Ichizoku: Toukon Matrimelee'' (2002; Neo-Geo)
* ''Shin Gōketsuji Ichizoku: Bonnou no Kaihou'' (2006; PlayStation 2)
* ''Gōketsuji Ichizoku Matsuri Senzo Kuyou'' (2009; Arcade)

The series also produced one SpinOff, ''Purikura Daisakusen'', an isometric ActionGame released for arcade and SegaSaturn in 1996.
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!!This series features examples of:

* AffectionateParody: of most other fighting games at the time.
* BigBad: Each game in this series has its final boss:
** ''Power Instinct'': Oume Goketsuji
** ''Power Instinct 2'': Otane Goketsuji (though the real big bads are Oume and Oshima Goketsuji)
** ''Gogetsuji Legends'': Chuck
** ''Groove On Fight'': Bristol-D [[note]]A demonic form of Bristol Weller[[/note]]
** ''Matrimelee'': Princess Sissy
** ''Bonnou no Kaihou'': Bobby Strong
** ''Matsuri Senzo Kuyou'': Shinjuro [[spoiler:Goketsuji]]
* BigScrewedUpFamily: Most of the playable characters in the series and a number of the non-playables are members of the Goketsuji family. Some are more distant than others, of course. A few of the playable characters introduced in Matrimelee aren't related to the the Goketsuji family in any way, as it wasn't another family tournament.
* {{Bishonen}}: Several, most interestingly Prince's alternate form.
* {{Crossover}}: The {{guest fighter}}s from ''VideoGame/RageOfTheDragons'' appeared in ''Matrimelee''. On the other hand, Kurara appeared in a ''VideoGame/VirtuaFighter''-esque PlayStation game, ''Heaven's Gate''.
* DarkerAndEdgier: ''Groove On Fight''.
* EnergyAbsorption: The Otane, Oume, Elizabeth, and Sandra do this in order to transform into their younger selves.
* [[{{Expy}} Expies]]:
** Bristol-D looks like [[Franchise/{{X-Men}} Mister Sinister]].
** Chuck is a bossy [[VideoGame/ArtOfFighting Ryo Sakazaki]]. He even predated [[VideoGame/StreetFighterIII Sean]].
** Remi Otogiri is a female version of [[VideoGame/StreetFighterII Guile]].
** Saizo Hattori is basically UsefulNotes/HattoriHanzo and Kirigakure Saizou combined. He seems to also borrow from the ''[[VideoGame/SamuraiShodown Samurai Shodown]]'' incarnation of the former, especially via his throw move.
*** Hizumi Yukinoue is an {{Otaku}}-friendly Saizo.
** Thin Nen is [[DragonBallZ Krillin]] all grown up.
** White Buffalo is much like [[VideoGame/StreetFighterII Thunder Hawk]], even [[VirtuaFighter Wolf Hawkfield]].
* FanNickname: ''Legends'' and ''Matrimelee'' were called ''Gogetsuji Legends'' and just ''Matrimelee'' in the US, but most fans use the ''Power Instinct'' prefix when referring to them for the sake of consistency.
** The blue-ish aura that surrounds a character when they gain a level in their power bar is called "Stress Flame" by fans because said power bar is known as the "Stress Meter". Since ''Legends'', every character (or almost everyone) has one or two special moves that become stronger if performed while dashing or right after a dashing attack, those have been nicknamed "Shadow Attacks".
* [[WolverinePublicity Goketsuji Publicity]]: Otane and Oume themselves.
* {{Gonk}}: Prince.
* [[RedOniBlueOni Green Oni, Blue Oni]]: The Kuno brothers Shintaro and Buntaro.
* GuestFighter: [[RageOfTheDragons Jimmy, Lynn, Elias, and Mr. Jones]] in ''Matrimelee''.
** So did Bobby Strong in the PlayStation 2 semi-sequel ''Bonnou no Kaihou'', though the ROTD characters did not return, sadly.
* {{Kid Appeal Character}}s: Kintaro Kokuin, Kurara Hananokōji, Popura Hananokōji [[note]]Kurara's [[StrongFamilyResemblance daughter]][[/note]], and Takumi Hattori.
* LimitBreak: A few characters in ''Matrimelee'' and up had a level 3 Forbidden super move.
* [[spoiler:LohengrinAndMendelssohn: Whoever defeats Sissy in Matrimelee will proceed to marry her... NOT!]]
* [[SpellMyNameWithAnS Look what]] ''Matrimelee'' [[DubNameChange did to some of the characters' names]]:
** Annie -> Anny
** Kurara -> Clara
** Kuroko [[labelnote:(non-player character)]]He's also playable in ''Gogetsuji Legends'' under the name Ninja Boy when it comes to that game's American version.[[/labelnote]] -> Enabler
** Otane Gōketsuji -> Tane
** Oume Gōketsuji -> Ume
** Thin Nen -> Chinnen
*** On a similar note, Oshima is spelled Osima in ''Power Instinct 2''.
* ManaMeter: Introduced in ''Power Instinct 2''. Getting hit or striking a blocking opponent builds this up. Groove On Fight introduced multiple levels of the meter, which shows up in later games.
* MeaningfulName: ''Groove On Fight'' utilizes background dance music.
** On the subject of acronyms, Max Ax Dax in ''Groove On Fight'' was better known as M.A.D.
* OlderThanTheyLook: See EnergyAbsorption.
** Kanji can turn into his younger samurai self in one of his moves.
** Prince can also turn into his younger self when [[YouGetKnockedDownYouGetBackUpAgain he gets knocked down and gets back up again]].
* OnlyOneName: Chuck, Falco, M.A.D. (subverted; his name is Max Ax Dax), and Maruta[[note]]non-player character ''and'' literal training dummy[[/note]]
** There's a related [[http://www.youtube.com/watch?v=PumFnlu9EIY the unlockable music video for it]] for it: onmyoji Yabeno Hikomaro, shrine maiden Kotohime, and three backup monks (referred to only as the Bozu Dancers) dance in the background to a surprisingly catchy tune. The song and video became something of a meme.
* RuleOfThree: Strangely enough, each character in ''Groove On Fight'' has a three-pieced special move.
* ShotoClone: Reiji and Keith, more or less. In ''Groove On Fight'', it's Larry and Chris. Annie also qualifies.
* SourceMusic: The background musicians are usually visible in each stage.
* SNKBoss: Bristol D. and Princess Sissy. '''Especially''' Sissy.
* TauntButton: ''Matrimelee'' introduced this. In case both players taunt at the same time, they must proceed to a "Bloodline Battle", where they'll press a correct button to respect each other until either fighter makes the wrong move.
* TomboyAndGirlyGirl: Angela (ButchLesbian) and Annie (LadyOfWar).
** In addition from ''Matrimelee'' onwards, Hikaru ({{Bokukko}}) and Sissy (GirlyBruiser).
* {{Transformation Trinket}}s: Shown in the ''Gogetsuji Legends'' intro are Clara's wand and Kinta's bib, which respectively turn them into Super Clara and Poochy.
* WidgetSeries
* XMeetsY: ''Groove On Fight'' is ''VideoGame/StreetFighterAlpha'' meets ''[[FuunSeries Kizuna Encounter]]'' with a touch of ''VideoGame/StreetFighterIII'' and ''[[VideoGame/FatalFury Mark of The Wolves]]''.
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