[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/one_piece_pirate_warriors_cover_1199.jpg]]
''One Piece: Pirate Warriors'' (''One Piece: Kaizoku Musou'' in Japanese, meaning "Unparalleled Pirates"/"Peerless Pirates") is a 2012 video game from Creator/{{Namco Bandai}}, made by Creator/{{Koei}}).

After adapting ''Franchise/MobileSuitGundam'' and ''Manga/FistOfTheNorthStar'' into ''Warriors'' games, KOEI decided to give ''Manga/OnePiece'' the same treatment. The game follows the standard ''Warriors'' formula: you run around a stage beating up waves and waves of enemies while achieving objectives to unlock the main opponent. The story covers most of the manga's storyline, specifically some of the more important fights in the series (Don Krieg, Arlong, Crocodile, etc).

The game was released on March 1, 2012 in Japan. Much to the surprise of the fanbase, it was announced that Europe and North America would get the game too (released on September 21, 2012 and September 25, 2012, respectively). However, the former would be able to get it retail while the latter would only be able to obtain the game by download via PlayStation Network. Additionally, the English versions would retain the Japanese language and only be in subtitles.

[[http://www.imagebam.com/image/7393e4224175376 A sequel was made]], titled ''One Piece: Pirate Warriors 2''. Unlike its predecessor, ''Pirate Warriors 2'' has its own non-canon storyline. It also includes more characters from the series, as well as elements from after the TimeSkip.

----
!!''One Piece: Pirate Warriors'' has the following tropes:

* AbortedArc: The Kuro, Skypiea, Thriller Bark and Amazon Lily arcs are all left out of the game unfortunately.
-->'''Brook''': [[LampshadeHanging What about my story?]]
** The sequel brings some of those lost locations back, but still skips over a few, like Fishman Island.
* AdaptationExpansion: You actually get to fight [[KnightTemplar Akainu]] as Luffy ''and kick his ass''.
** Also Whitebeard's use of Conqueror's Haki was an InformedAbility in the manga and anime, whereas he actually uses it in this game.
* AlternateUniverse: Pirate Warriors 2. Ace never quite found Teach in Part 1, so as such never fought him and never went to Impel Down. So the Marineford arc never happened, [[spoiler:Ace and Whitebeard are both still alive and Teach doesn't have Whitebeard's power (yet...)]].
* AndYourRewardIsClothes: Beating the Main Adventure mode and the Another Logs of Sanji and Zoro unlocks the [[TimeSkip New World]] appearances for the Monster Trio.
* AttackAnimal: Boa Hancock's pet snake, Salome, is this. She even uses him as a bow for her Slave Arrow special attack.
* AutobotsRockOut: As per ''VideoGame/DynastyWarriors'' tradition, the battle themes rock hard.
* BaitAndSwitchBoss: In an interesting twist, the Luffy vs. Usopp duel. The way the camera twists around gives the impression you'll be fighting Usopp, then the camera quickly twists to behind Usopp, and you have to '''fight Luffy.'''
* BigBadDuumvirate: [[spoiler: Blackbeard, Eneru, and Gekko Moria form an alliance in the story mode for ''Pirate Warriors 2''.]]
* BigBallOfViolence: In the sequel, this is actually one of Garp's attacks.
* BigDamnHeroes: Multiple times in Pirate Warriors 2. [[spoiler: The best two would be Whitebeard preventing Ace's death and Kuzan saving some pirates by freezing Akainu's Meteor Volcano.]]
* BlindIdiotTranslation: The sequel has several instances.
* BrainwashedAndCrazy: Anyone affected by a "Frenzy Dial" becomes an empowered Berserker that will obey whoever has the "Operational Dial". [[spoiler:Teach ends up getting both.]]
* BrickJoke: For Sanji's level opening, he cooks a steak before tossing it on a plate into the air to kick away an enemy. At the end of the stage, he kicks away an enemy, and catches the plate he tossed in the air earlier.
* ChargedAttack: Some characters, such as Luffy, can do this with certain attacks to increase the damage and/or range.
* TheCoatsAreOff: Garp's taunt has him throw his CoatCape away.
* CompositeCharacter: The Pirate/Marine leaders have traits from various characters in the manga, such as Jozu's body and Alvida's mace.
* CompressedAdaptation: All the arcs (the ones that are covered anyway) are done in sort of a abridged version. It's cool to see it done in {{CGI}}, but you don't get the whole story.
* CutscenePowerToTheMax: When it comes to the boss battles.
* DifficultButAwesome: Robin's [[GroinAttack Dos Fleur: Grab]]. Inaccurate and slow, and only targets one enemy, but is almost certain to instantly kill them or severely damage them in the case of a boss.
* DownloadableContent: Both games feature small DLC packs consisting of a costume and a mission. The first game's downloadable costumes are kimonos for Luffy, Zoro, Nami, Sanji, Usopp, Chopper and Robin, Nami and Ace's ''Strong World'' costumes, and Hancock's Amazon Lily outfit. The second game's DLC costumes are Luffy, Zoro and Sanji's outfits from ''Film Z'', and costumes for Nami, Robin, Hancock and Perona modeled after some of the female characters from ''Dynasty Warriors''.
* DrunkWithPower: Pirate Warriors 2. [[spoiler: Teach when he finally gets Whitebeard's Quake powers. Taken UpToEleven when he combines his own Darkness with the Frenzy Dial.]]
* EnemyMine: Repeatedly occurs in Pirate Warriors 2, usually because both parties recognize that there is a [[GodzillaThreshold far bigger threat to worry about]]. By the end, even the Marines are (mostly) agreeing to work with the Straw Hat - White Alliance to take down Blackbeard's forces.
* FatalFlaw: In Pirate Warriors 2, [[GameplayAndStoryIntegration just like in the main series]], Sanji is completely helpless against female characters. The game even warns the player when the level has women in it. This means that Sanji can't do any damage to them and the only way for him to hurt them is to perform a Crew Strike Combo and get someone else to do the job.
* FinalBoss: Akainu in the first game, [[spoiler:a berserk Teach]] in the second.
* FightingYourFriend: In the second game, Luffy and Nami have to fight their BrainwashedAndCrazy friends to return them to their senses.
* FoeTossingCharge: A staple move for any ''Dynasty Warriors'' game.
* GrievousHarmWithABody: Some attacks. Garp in particular has a lot of them, because of all his wrestling moves.
* HoistByHisOwnPetard: [[spoiler:Blackbeard loses control of the berserkers and desperately uses Black Hole. This causes the Frenzy Dial "fog" to merge with his "darkness", turning himself and everyone around him into loose berserkers.]]
* ImpossibleHourglassFigure: The female characters. This is nothing new, as it is the case in the main series as well, but it is lampshaded in the sequel, with Whitebeard referring to Robin as "an extremely slender young woman".
* InterfaceSpoiler: On the character select screen and in the gallery of the sequel, non-Straw Hat Pirate playable characters are ordered according to when they become playable. However, they are unlocked in the gallery as soon as they're encountered, and not necessarily when they're properly playable. That means the gallery can spoil the order in which the characters are unlocked.
* ItsPersonal: Pirate Warriors 2 has Ace's reason to find Teach. He finally finds him during the Marineford War, but unlike the canon story, this time he has Whitebeard with him.
* LimitBreak: It wouldn't be a ''Dynasty Warriors'' without those. Some of them in the first game were a SuperMode, but all of them are attacks in the sequel.
* MarathonLevel: One of the DLC challenges is an all-out brawl in which you're alone and have to defeat ''9999 enemies''.
* {{Meganekko}}: Nami's taunt in both games has her putting on glasses.
* MightyGlacier: Whitebeard moves pretty slowly, but can dish out a lot of damage and his Conqueror's Haki has a wide range that can knock out a lot of {{Mooks}} and stun bosses.
** This also applies to Franky: his attacks are slow and he needs to refuel on cola every now and then, but he hits hard, and has a decent range.
** Jinbe attacks slowly, moves slowly, and overall feels heavy, but he hits like a darn tank, and many of his attacks are very wide.
* MultipleEndings: The second game. You're at first stuck on the normal ending route, but fulfill certain conditions and you'll be able to go for the true ending.
* MythologyGag: The games have a ton of references to the manga, ranging from attacks (some of them even hailing from filler material) and quotes to trophy names, poses and indirect cameos.
* OldSaveBonus: Starting up the second game with a save file of the first game in the PS3 will net you 500,000 Berries and a rare golden coin right off the bat.
* PressXToNotDie: The first game has [=QTEs=] in the Main Log levels.
* PromotedToPlayable: Some characters who only appeared as bosses or cameos in the first game are playable in the sequel, like Kuma, Garp, and the Admirals.
* PuzzleBoss: In Usopp's battle against Luffy, he's severely outmatched, understandably. You have to lure Luffy into traps to lower his health. While you do have some useful techniques to do good damage to him, the traps do the most damage.
* RareRandomDrop: The coins start to become a real pain to find the less there are left. The Straw Hats' New World Marks are only capable of being found if the player does exceptionally well in a level [[note]]700+ ! points[[/note]], and even then they still might not get them. To say nothing of the Marks of characters such as Sabo and Marco...
* RedEyesTakeWarning: Those affected by a Frenzy Dial.
* RyuAndKen: Some of the non playable boss characters are simply copies of playable characters in [=PW2=], examples include Sentomaru as Jinbei and Vista as a pre-timeskip Zoro.
* SetBonus: In he first game, by putting three coins together on a board that are linked in some way(i.e: members of a crew, devil fruit users, [[ArsonMurderAndJaywalking noses]]) their usual stat boosting abilities are negated for a special effect.
* TakenForGranite: Some of Hancock's attacks petrify the enemies for a short while, making them vulnerable to more hits. As a funny nod to the main canon, they also freeze in a silly, lovey-dovey pose.
* ATasteOfPower: The TutorialLevel for the first game takes place after the TimeSkip, and gives you all of your moves and an exclusive SP attack.
* TauntButton: Select. Some characters merely perform a taunt, but others can put or remove accessories (Nami puts on glasses, Smoker puts on CoolShades, Luffy puts on his straw hat...).
* ThatRussianSquatDance: In the sequel, Buggy does this before using his first LimitBreak, Bara Bara Festival.
* ToBeContinued: Every Main Log level ends with one, mirroring the main series. [[spoiler:Also just like the main series' first half, the first game ends with "GO TO NEW WORLD" instead.]]
* TrueEnding: Unlocked after clearing the first ending and a select few of the available crew missions in PW2, [[spoiler:where Whitebeard survives and things go south for Teach.]]
* VictoryPose: One for each character (Usopp gets an extra one for Sogeking), which are obviously loaded with references to the manga. Franky's pose in the first game, for example, is directly lifted from his introductory speech.
* VideoGameCharacters:
** LightningBruiser: Luffy, Zoro, Sanji, Ace - all extremely fast, fairly durable, and strong.
** GlassCannon: Usopp - Who is frail and swift but can attack rapidly from long-range.
** JackOfAllStats: Chopper - Can do anything, but only in short bursts.
** MechanicallyUnusualClass: Robin, Nami - Robin's fighting is totally indirect and Nami's is based around debuffing.
** MightyGlacier: Franky, Whitebeard, Jimbe- Slow and powerful, but needs to reload in Franky's case.
** FragileSpeedster: Brook - plays similar to Luffy, Zoro, and Sanji but is quicker and frailier.
* XMeetsY: ''Manga/OnePiece'' meets ''VideoGame/DynastyWarriors''.
* WeakButSkilled: Nami's playstyle. Her attacks are generally the weakest of all the playable characters, but are used as setups (by making clouds over enemies heads) for the powerful [[ShockAndAwe Thunderbolt Tempo]].
** Perona in the sequel. She has a hard time when it comes to building her Special Meter and her attacks don't do much damage but she can send out ghosts to inhabit/depress the enemies, which then enables her to deal meaty amounts of damage by removing ghosts from the depressed enemies(blowing them up).
* WrestlerInAllOfUs: Garp's fighting style in the sequel.
* WeCannotGoOnWithoutYou: In the other characters' stages in Another Log, if a certain character (usually Luffy) is defeated, it's an automatic Game Over. Many stages in the second game also cause an instant GameOver if (a) certain character(s) happens to fall in battle.
* ZergRush: As per ''Dynasty Warriors'' style.
----