[[caption-width-right:350:"Gotta hang on to something, right?"[[note]]Left to Right: [[ImpliedLoveInterest Xion]], [[TheProtagonist Roxas]], [[BestFriend Axel]], [[HeroAntagonist Riku]], Disney/MickeyMouse[[/note]]]]

->''"What mattered the most was remembered the least."''
-->-- '''{{Tagline}}'''

''Kingdom Hearts: 358/2 Days'' (read as ''Three-Five-Eight Days Over Two'') is the [[WordSaladTitle oddly named]] fourth offering in the ''Franchise/KingdomHearts'' series, released on the UsefulNotes/NintendoDS in 2009. It is an {{interquel}}, taking place between ''VideoGame/KingdomHeartsI'' and ''VideoGame/KingdomHeartsII'' and overlapping ''VideoGame/KingdomHeartsChainOfMemories'' at a few points. As the name suggests, the game takes place over the course of nearly a year.

A departure for the series, ''358/2 Days'' stars Roxas, Sora's Nobody introduced in ''II'', and his life as part of the unscrupulous Organization XIII. It also introduces Xion, a previously unmentioned 14th member that can also use the Keyblade and has an appearance similar to Kairi, Sora's LoveInterest. Due to the game's seeming lack of a central antagonist and the Creator/{{Disney}} elements being heavily downplayed, it largely focuses on developing Roxas' friendship with Axel and Xion and characterizing the other Organization members.

''358/2 Days'' uses an ActionRPG system very similar to the console ''Kingdom Hearts'' games, but modified for the portable format. Rather than simply exploring worlds in one go, Roxas is sent on various missions by the Organization that require frequent visitations, with the plot unfolding as the missions are undertaken. Roxas's items, abilities, and spells are all equipped via a GridInventory that slowly expands as the game progresses, which leads to some minor InventoryManagementPuzzle aspects.

There's also a local multiplayer option called Mission Mode that utilizes the Nintendo DS's wireless capabilties. Up to 4 players can team up to tackle altered versions of select story missions while competing for points, with options such as FriendlyFire to make things more interesting if desired. Every Organization XIII member is playable in Mission Mode alongside some {{Secret Character}}s like Riku, giving ''358/2 Days'' the largest playable cast in the series at 19 characters.

The game was included as part of the CompilationRerelease ''Kingdom Hearts HD I.5 [=ReMIX=]'' released on the UsefulNotes/PlayStation3, though not with gameplay. Instead, the story is retold in a movie that lasts nearly 3 hours, making use of HD cutscenes, a new voice track, and occasional text breaks that give quick snippets about Roxas' daily missions. It also contains every entry from Roxas's Diary and the Secret Reports, which can be accessed after every cutscene has been watched.

This would be the last game in the series to feature Wayne Allwine as the voice of Mickey Mouse before Allwine's death in 2009; as well as the final performance of Creator/ChristopherLee as [=DiZ=] before the actor's death in 2015.

Has a [[Manga/KingdomHearts358DaysOver2 manga adaptation]] that is LighterAndSofter.
!!This game contains examples of:
* HundredPercentCompletion:
** Completing every mission and every mission 100%, respectively, will earn you [[spoiler:Mickey and Sora]] as Mission Mode characters.
** If you want the Secret Reports, you have to play the challenge (and special challenge) missions sooner or later.
* AdaptationExplanationExtrication: In the ''HD I.5 [=ReMIX=]'', most, if not all, of the missions are summed up in a small text display - a great deal of the Theatre Mode cutscenes take place in Twilight Town or the Castle That Never Was. Thus, various pieces like "last day to work with Xion, gotta get the Keyblade to work" are left to assumption, and a sizable amount of context is lost as a result.
* AdvertisedExtra: Mickey Mouse is featured on the cover art, but his story relevance is restricted to one scene with little impact on the narrative.
* AllTheWorldsAreAStage: Zant Stage Rush variety. Each form of [[spoiler:Xion]] is fought in a different world: First Form is in the Bizarre Room in Wonderland, Second Form is at the Manor Ruins at Halloween Town, Third Form is in the Lamp Chamber at Agrabah, and the Final Form is at the Clock Tower in Twilight Town.
* AllThereInTheManual: The authors of the Secret Reports are never stated in the game (though some can be easily be identified by the context), only the ''Ultimania'' book.
* ArbitraryMissionRestriction: The optional Challenge Missions will often impose mandatory restrictions such as putting a {{cap}} on your level, disabling attack magic, disabling healing, and so on.
* ArsonMurderAndJaywalking: Genie's attempts to get his worried thoughts about Aladdin out of his mind involved dynamite, sledgehammers, and tweezers.
* ArtificialHuman: [[spoiler:Xion is not a natural human or Nobody, she's a Replica created by Vexen. She was designed to copy the Keyblade's power (via taking memories from Roxas) so Xemnas could have more direct control over the weapon.]]
* ArtificialStupidity: Your AI-controlled partners have a tendency to run into walls, fall off of ledges, and teleport in front you during your jumps.
* AutoRevive: The Auto-Life Ability Panel will revive your once per mission. The Level 1 version revives you with 1/3 of your total HP, the Level 2 version 2/3, and the Level 3 version revives with full HP.
* AwesomeButImpractical:
** The Firaga spell has a decently sized explosion radius, but it also has an awkward trajectory that forces it to travel in an arc. This limits its range while also making it difficult to actually hit moving targets.
** The Curaga spell creates a small field of energy that will quickly restore the HP any ally that stands in it. Its use in combat is limited since you're forced to stay put in the small area to receive the healing, making dodging boss attacks difficult to impossible.
* AxCrazy: Saïx in berserk mode. Subverted for [[spoiler:Xion in her transformed final form. She appears to be this, but she's actually feigning it so that Roxas will destroy her and she can return to Sora.]]
* BalanceBuff: Guarding in ''VideoGame/KingdomHeartsI'' and ''VideoGame/KingdomHeartsII'' would only provide invincibility for a set time, making it less useful against large groups of attacking {{Mooks}} and bosses with long-lasting attacks. The invincibility granted will now refresh if you're hit while the blocking animation is still playing, making the ability much safer.
* TheBattleDidntCount: The last boss is a fight against Riku that the game expects you to win, but the story dictates that he brings Roxas to Naminé so ''VideoGame/KingdomHeartsII'' can happen. Due to this, the cutscene after shows him getting up and using the power of Darkness to overcome Roxas.
* BecomingTheMask: Reading the Secret Reports reveal that Axel's initial promise of friendship to Roxas was a lie and that he didn't really feel anything toward him. After coming back from the events at Castle Oblivion, he gradually became Roxas's friend for real.
* BigBad: Siax is the most prominent opposition Roxas faces throughout the game.
* BigGood: Riku takes on this role at times, acting as a StealthMentor to Xion.
* BittersweetEnding: [[spoiler:Xemnas' plan to get rid of Roxas and stop Sora's reawakening are thwarted when Xion forces Roxas to kill her, but everybody forgets about her since her existence was based off of the memories of someone else.]]
* BonusBoss:
** The Dustflier is an optional seventh Heartless in a mission near the end in which Roxas has to take out six. It's essentially just a supersized version of a normal enemy, and it spends the battle flying around. Every time it lands on the ground, it sends out a very large shockwave that can inflict one of thirteen status effects, including blinding you, reducing your defense to level one, and keeping you from jumping. The player is warned beforehand that it's one of the strongest Heartless in the game, but it's easy to go in unprepared and be killed within two hits (not exaggerated in the slightest bit) by this monstrosity.
** If you try to fight Saïx or Riku on Mission Mode, you instead encounter the much more powerful (but eerily silent) Anti-Saïx and Anti-Riku.
* BoringButPractical: The Fire spell is less powerful than Fira and Firaga, but it has long range and homes in on targets.
* BossInMookClothing: The game ''warns'' you about a couple of these: "Caution! A powerful enemy is near!" Living Pods are a straighter example, while Invisibles are actually ''harder'' than their boss version, Orcus, mainly by virtue of having a crapton more HP.
* BossRemix: The theme that plays during the last stage of the fight against [[spoiler:Xion]], "Vector to the Heavens", is a remixed combination of [[spoiler:her]] theme, [[spoiler:Kairi's]] theme, and the series' RecurringRiff "Dearly Beloved".
* BossRush: Mission 89 on Day 353 has Roxas going around Twilight Town to take down 6 powerful Heartless: Gigas Shadow, Poison Plant, Stalwart Blade, Orcus, Veil Lizard, and Power Armor. There's also an [[BonusBoss optional fight]] against the draconic Dustflier, the strongest enemy in the game, that appears in front of the Clock Tower once the other 6 have been defeated.
* BraggingRightsReward:
** The Ultima Weapon is an Ability Panel that increases the strength bonus of weaker weapons to +100, making the early game weapons and {{Joke Weapon}}s completely viable options. It can only be obtained by completing every challenge mission, which includes some of the hardest parts of the game due to the number of {{Arbitrary Mission Restriction}}s.
** The Master's Circle accessory grants total immunity to all StandardStatusEffects and has a high Defense value, but also damages the wielder whenever this miss an attack and prevents healing once they hit critically low HP. It can only be obtained by getting every Mission Crown, which requires completing all missions in Mission Mode at least once.
* BrickJoke: A sad version with Roxas and the winner stick. He keeps forgetting to give the stick to Axel as a present, and later decides to wait until he gets a second one so Axel and Xion can both have one. [[spoiler:When he leaves the Organization, the last thing he does is give the winner stick to Axel.]]
* CallForward:
** The concept of summer vacation and going to the beach gets brought up a couple of times, with Roxas particularly noting that he could probably only take a full week of vacation before getting bored. The prologue of ''VideoGame/KingdomHeartsII'' takes place during the last week of summer vacation and has Roxas trying to go to the beach with his friends.
** Roxas asks Axel "What's our boss's name?" when he's trying to make sure Axel knows what's going on. Later in ''VideoGame/KingdomHeartsII'', Axel asks Roxas this same question when trying to get Roxas to remember their friendship.
** In Beast's Castle, Roxas explores the basement and finds a set of double-doors with statues carved into them. These statues later become a boss in ''VideoGame/KingdomHeartsII'' after Sora wakes up and explores Beast's Castle.
* CameraCentering: Double-pressing the R button while no enemies are around will focus the camera directly behind the player character.
* CameraScrew: The auto camera is finicky, but it won't give you too much trouble except near walls. Unfortunately, when it does, it screws you hard, making two boss fights (Leechgrave and Ruler of the Sky) much more difficult, and making many of the in-game challenges much harder than they should be.
* CaptainObvious: Roxas's first recon mission with Vexen has him pointing out very obvious features of Twilight Town's infrastructure.
-->'''Roxas''': These tiles are different than the others... it's like a road... \\
'''Vexen''': Fascinating... And? \\
'''Roxas''': Um... \\
'''Vexen''': We'll never get anywhere if you just keep stating the obvious.
* ChekhovsLecture: During a visit to Beast's Castle, Xaldin tells Roxas that if a giant Heartless would ever attack, it would come from the bridge. During Mission 50 on Day 171, a giant Heartless does show up and it's fought on the bridge.
* ChestMonster: Some chests contain Heartless known as Cymbal Monkeys and Tricky Monkeys instead of items.
* CerebusSyndrome: Starting with this game the series has made liberal use of [[spoiler: PlayerPunch]].
* CloningBlues: [[spoiler:Xion is a Replica designed to absorb Sora's memories through Roxas. Once she finds out, she has an identity crisis and runs away from the Organization.]]
%%* CompetitiveBalance: The mission mode characters tend to fall under this.
* ConnectedAllAlong: This game reveals that Axel and Saïx were friends before joining the Organization and have been plotting together to overthrow it ever since.
* ContinuityLockout: The game assumes players already know what happens in ''VideoGame/KingdomHeartsI'', ''VideoGame/KingdomHeartsChainOfMemories'', and ''VideoGame/KingdomHeartsII'', doing little to fully explain what happened to newcomers bar a tutorial about the nature of the Heartless.
* CopyProtection: Pirated copies won't go past choosing your difficulty.
* CreatureHunterOrganization: Organization XIII spend much of their time hunting down Heartless so they can have Roxas and Xion destroy them with the Keyblade, releasing the hearts within.
* CripplingOverspecialization: Donald has the highest Magic stat out of all characters, but all of his other stats are bottom-of-the-barrel or below average and the limited Magic system makes his bonus pretty moot. The character with the second highest Magic stat, Zexion, can actually deal physical damage with strong combo finishers due to the CriticalHit mechanics and his high Crit% stat.
* CriticalHitClass: Saïx in Mission Mode has the highest natural Crit and Crit% stats out of the entire cast, and many of his weapons supplement these with bonuses. A high leveled Saïx with the right equipment can manage to have one out of every three hits be a CriticalHit, and those crits will do enough damage to take off a full HP bar's worth of health.
* DamnYouMuscleMemory: The UsefulNotes/NintendoDS and UsefulNotes/PlayStation2 have identical 4-button layouts (albeit with different labels), but this game's attack and jump buttons have swapped positions from previous titles.
* DarkerAndEdgier: This game is considerably grimmer than the three previous games in the series where you play as Sora. In those games, you played as an upbeat boy on a mission to save the universe and reunite with your friends, and while [[BittersweetEnding things didn't always work out perfectly]], at least there was always hope that everyone could eventually get a happy ending. In this game, by contrast, you play as a morose boy [[VillainProtagonist working for the bad guys]] who has no goals or ambitions or even ''joys'' in his life, and only serves the villains because he knows nothing else. ''That's the game''. The only spots of happiness in his life are his friends Axel and Xion, and these slowly slip away over the course of the story. [[spoiler: By the end the trio are split forever, Xion fades from existence ''and memory'', and [[DownerEnding Roxas is kidnapped and forced into a situation that will lead to a fate similar to Xion's]]]].
* DeadpanSnarker: Axel makes several snarky comments while teaching Roxas about the basics of the game.
-->'''Axel:''' See, there's this thing about chests. They have stuff in them.\\
'''Roxas:''' So I should open the chest?\\
'''Axel:''' Yes, that is generally what we do.
* DeathIsASlapOnTheWrist: Dying during the Story Mode places Roxas right before the fight that killed him with full health and Limit gauge, magic and items restocked to the level they were prior to entering the room, and mission progress/Heart Points from the point of death preserved.
* DegradedBoss: The first time a Neoshadow is encountered in Mission 29, it is treated as a boss. During the last mission of the game, Mission 93, a large number show up as normal {{mooks}} that die to 1-2 hits.
* DemotedToExtra:
** Xemnas gets surprisingly little screen time for the leader of the Organization [[spoiler:and the game's main antagonist]].
** Mickey Mouse's only appearance during the story is in one scene that's completely irrelevant to the narrative.
* {{Diary}}: On Saïx's suggestion, Roxas keeps a journal of his time in the Organization. It serves the same purpose as Jiminy's Journal from previous games by giving small recaps of each day's events (assuming the day is story-relevant), on top of giving you some insight on Roxas' thoughts and feelings.
* DifficultyByRegion: The international versions of the game are easier than the original Japanese. Enemies have less HP, Munny is now awarded for beating missions, and some enemies deal less damage.
* DisappearsIntoLight: [[spoiler:When Xion dies, she turns into light and fades away.]]
* {{Dismotivation}}: Demyx is a total slacker who goes as far as bribing Roxas to do his work for him, because he's "not cut out" for fighting.
* DoomedByCanon:
** [[spoiler:Xion is never seen or mentioned in ''Kingdom Hearts II'' despite her important role in Roxas's life with Organization XIII. Roxas has no flashbacks involving Xion, so that hints at Xion being Ret Gone. Explained in-game that as Xion's essence was reabsorbed into Roxas, there was nothing left to remember Xion with. Unlike Roxas and Naminé, she utterly ceases to exist.]]
** Since Roxas's defeat by Riku and subsequent capture by him and [=DiZ=] is canon as shown in ''VideoGame/KingdomHeartsII'', the final battle at the end of the game relies heavily upon both CutsceneIncompetence and CutscenePowerToTheMax to prevent the player from being able to change this.
** [[spoiler:The planned rebellion by Saïx and Axel not only fails due to the former BecomingTheMask, but Saïx fails to get his heart back before his demise by Sora's hands in ''Kingdom Hearts II,'' and was either becoming or already taken thereafter as a Xehanort vessel by ''Dream Drop Distance'', locking him into TheDragon with or without consent.]]
* DownerEnding: It's a given since ''Kingdom Hearts II'' needs to happen, but its hard not to feel bad for Roxas, Axel and Xion after playing the game. [[spoiler: Xion decides to return to Sora after finding out the truth and to protect Roxas from disappearing. Roxas leaves the organization after everything he's been through, gets captured by Riku and DiZ and has his memories rewritten. And Axel lost his two best friends within the span of a few days after everything he's done to protect them.]]
* TheDragon: Axel does most of the heavy lifting for an eventual betrayal of Xemnas led by Saïx.
* DragonWithAnAgenda: [[spoiler:Saïx and Axel are revealed to have formed a plan to overthrow Xemnas, before Saïx [[BecomingTheMask became the mask]]. However, unlike [[TheStarscream Marluxia]], who wants to overthrow Xemnas to take over the Organization, Saïx and Axel sought to overthrow Xemnas to reclaim their hearts. That and the fact that Xemnas really wanted to use Kingdom Hearts's power to [[AGodAmI become a god-like being...]]]]
* DubNameChange: Tons and tons of Heartless experience name changes from the Japanese names. The problem is, a few cases make for an InconsistentDub.
* DummiedOut:
** Profile sprites for ''Disney/{{Pinocchio}}'' characters, Megara, Hades, and Tinker Bell exist in the game files.
** Roxas, Axel, Xion, and Marluxia have slightly different [=HUD=] sprites that went unused.
** A model for an enemy called Crooked Chariot is buried in the data.
** There are a couple of Keyblades that have unused {{palette swap}}s, such as the Leviathan's counterpart (known as the [[http://www.khwiki.com/File:Windmaker_(Removed)_KHD.png Wind Maker]]).
* DyingAsYourself: [[spoiler:Xion transforms into... some kind of creature (presumably her true form with Sora's combat abilities) in the final battle with her, but returns to normal as she fades away.]]
* EasingIntoTheAdventure: The first 20+ days consist of extremely simple tutorials and getting a feel for the characters, justified in-story by the fact that Roxas starts off basically catatonic and has to get to know the rest of the Organization just like the player does.
* EarlyBirdCameo:
** [[spoiler:Xion transforms into Ventus once.]] The same cutscene also shows that [[spoiler:Xigbar knew Ventus.]]
** A weirder, smaller, kinda-sorta example: [[spoiler:at one point, Saïx calls Axel "Lea", clarifying Axel's original name just in time for Lea's appearance in ''Birth by Sleep''.]]
* EenieMeenieMinyMoai: Lexaeus's Mystery Gear JokeWeapon is a Moai head on a stick.
* EffortlessAchievement: The ''HD I.5 [=ReMIX=]'' CompilationRerelease has 6 extremely easy to get UsefulNotes/PlayStation3 trophies: 3 for watching all of this game's remastered cutscenes, 1 for reading Roxas's Diary, 1 for reading the Secret Reports, and 1 for doing all of the other previous tasks.
* EleventhHourSuperpower: Roxas gains the ability to [[DualWielding dual wield the Oathkeeper and Oblivion Keyblades]] during the first part of the last mission. His attacking speed and power increase dramatically, letting him quickly kill the Neoshadows that spawn with only one or two hits.
* EliteMook: Samurai Nobodies have as much HP as bosses and deal tons of damage with their attacks. They only show up in a few missions at The Castle That Never Was as a part of tests for Roxas, or attempt to subdue him during his escape from the Organization on Day 356.
* EvenEvilHasStandards: Axel has zero qualms about the fact that he killed or orchestrated the deaths of the Castle Oblivion members, but Saïx constantly mistreating Xion starts to get under Axel's skin almost as bad as it does for Roxas, and is a major factor in causing the falling out between the two former friends.
* FailedASpotCheck: Lumiere and Cogsworth from ''Disney/BeautyAndTheBeast'' are found in some missions at Beast's Castle on patrol, and the player must stay out of their line-of-sight since the Organization wants to lay low. Their sight range is very limited and they move in a fixed pattern, so it's entirely possible to be fighting Heartless on the other side of the room without them noticing.
* FailsafeFailure: [[spoiler: Xion was created as a failsafe, in case Sora and Roxas were unable to fulfill their roles in the Organization's plans. However things don't go as expected when Xion discovers the truth about her existence and rebels.]]
* FakeDifficulty: Any UnexpectedGameplayChange segment -- the controls are set up for an action RPG, not faux stealth segments. Fortunately, it's the ''only'' part.
* FightingYourFriend:
** Roxas fights Xigbar in the Olympus Coliseum about halfway through the game, though it's a friendly match for the games meant to maintain a charade.
** [[spoiler:Xion and Axel face off twice during the game. Both times it's sparked by Axel needing to bring her back to the Organization against her will.]]
** [[spoiler:On Day 352, Roxas and Xion are tricked into fighting each other without realizing it (they think the other is a Heartless due to an illusion) as part of Xemnas' plan, though they're quickly stopped by Axel. They fight again on Day 357, though this time Xion is forcing Roxas into it to get him to destroy her.]]
* {{Foreshadowing}}:
** Within any given cutscene, Xion's hood may randomly appear as up or down and obscure her eyes depending on who's speaking, with only a camera angle change to disguise the sudden transition. [[spoiler:This hints at her nature as a Replica, which are implied to start off with no facial features.]]
** Early on in the game, Xigbar nicknames Xion "Poppet" and will occasionally refer to her as such. [[spoiler:"Poppet" as well as the Japanese equivalent, "puu-chan", are both derived from the French word "poupee", which means "puppet". She is a Replica originally designed as a mindless puppet meant to be a backup Keyblade wielder.]]
** Near the end of the game, speaking to Xigbar in the Gray Area will have him talk about how "girls [Xion's] age have many faces." [[spoiler:How Xion appears varies by different people. Xigbar knows this, as he sees her as Ventus.]]
* GenderBender: Believe it or not, [[spoiler:Xion is an incomplete Roxas clone created from Sora's memories. She's female because Kairi's face and personality are Sora's strongest memories, but near the end of the game, with Sora's memories nearly reconstructed by that point, she ends up looking exactly like him just before going OneWingedAngel on Roxas (where "she" looks pretty much like a fully armored Sora with an echoing female voice).]]
* GetBackHereBoss:
** Emerald Serenades just fly around in a set path, never attacking, and force the player to chase or ambush them. The game even warns that chasing them is "an exercise in futility".
** Ditto with "The Stranger" in Twilight Town, except it's played straight.
** The Ruler of the Sky is fought in a large arena in Never Land where it spends a good chunk of the fight flying away from the player, forcing an interception.
* GettingCrapPastTheRadar: Two examples, both revolving around [[DarkActionGirl Larxene]].
-->'''Larxene:''' What are you looking at? ...Oh, dream on. It's not gonna happen, pipsqueak.\\
'''Demyx:''' [[WitchWithACapitalB Man, why's Larxene gotta be such a witch?]]
* GiveMeYourInventoryItem: The other Organization members in the Gray Area sometimes ask you for a specific common panel. If you hand one over, they'll give you a different panel in exchange. Whether this is worthwhile varies, as the panels they give you are also common drops, and they never tell you what you're trading for beforehand.
* GlassCannon: The "Extreme" accessory sets the wearer's HP to 1, but it allows they unlimited use of thier LimitBreak.
* GoingThroughTheMotions: Roxas, Axel, and Xion sit in a particular orientation when they meet up to have ice cream. Roxas is always in the middle, with Xion on his left and Axel on his right. Moreover, they sit down in the exact same manner each time.
* GoMadFromTheRevelation: [[ZigZaggingTrope Zigzagged]]. [[spoiler:Xion initially resists such a proposition despite the pain she feels, until Xemnas interferes in an attempt to force her to absorb Roxas. Not that he actually succeeded -- she's only [[ObfuscatingInsanity feigning insanity]] because she needed Roxas to destroy her artificial body so she could return to Sora, where she (quite lucidly) decided that she belonged.]]
%%* GoOutWithASmile: [[spoiler:Xion.]]
* GratuitousFrench:
** All of Larxene's knives have French names. [[KeepItForeign Except in the French version]], where they instead have [[GratuitousGerman German names]].
** Xion's theme is officially called "Musique pour la tristesse de Xion," which means 'music for Xion's sadness'.
* GridInventory: Weapons, accessories, some abilities, items, magic, and levels must be equipped on a grid via panels. Most only take up one panel, but many abilities and magic can be leveled up by linking panels to a specially shaped mini-grid that is placed in the main grid.
* GuestStarPartyMember: Some missions have Roxas team up with the other Oragnization members to help complete the objective. Each member except for Xemnas and Saïx joins him at least once.
* HeadsIWinTailsYouLose: Due to Roxas being DoomedByCanon, the absolute final battle [[spoiler:against Riku]] is this.
* HowWeGotHere: The game begins on Day 255, with Roxas and Axel on the clock tower. Then the game goes back to Day 7 to start the tutorial, showing the friendship of Roxas, Axel and Xion as the story moves on. Once you get to Day 255 again, things steadily go downhill.
* IKnowYourTrueName: Saïx pulls this on Axel as a not-so-subtle reminder of where the latter's loyalties ought to lie.
* ImmuneToFlinching: All 4 forms of [[spoiler:Xion]] cannot be stunned at all regardless of how much you hit her. Even when you interrupted her heal, she doesn't even react to being hit, instead she just flew down and continue the fight.
* ImprobablePowerDiscrepancy: A certain challenge mission increases the levels of enemies by '''60'''.
* ImprobableWeaponUser: Equipping the Mystery and Casual Gears give the Organization XIII members bizarre items to use as weapons, such as a huge sandwich for Zexion or a banana for Saïx.
* InfinityPlusOneSword: Well, it depends on the character which one is better, but equipping the Pandora Gear+, Omega Gear+, or the Zero Gear will result in one of these for each character. Notably, those three are the only gears that actually change the weapons given to the non-Organization characters. For Roxas, the Zero Gear can even change his fighting style entirely.
* InstrumentOfMurder: Equipping Xigbar with the Mystery Gear makes him wield a pair of trumpets in the stead of his Arrowguns. They shoot musical notes, accompanied by the appropriate sound effects.
* InventoryManagementPuzzle: A far more literal interpretation of the "puzzle" aspect. Roxas's inventory, leveling system, skills, and equipment are represented by "panels" which are slotted into a grid. Some things take up more space than others, and in various shapes. You'll need a keen eye to assemble everything efficiently.
* JackOfAllStats:
** Roxas, Xion, and Sora have an average 5/10 in every stat. This makes them the most versatile characters due to the minor stat customization given by the Panel System, but far from the strongest or most specialized.
** Axel has his stats ranging from a slightly below-average 4/10 to a slightly above-average 6/10, while his chakrams give him both decent ranged and melee options without specializing in either. This gives him a good amount of flexibility without being dedicated to one style.
* {{Jerkass}}:
** Saïx is constantly cruel to poor Xion, [[spoiler:and refuses to acknowledge her as anything but a disposable Replica]].
** Vexen flat-out calls Roxas an idiot to his face and spends most of his tutorial with Roxas insulting the kid's intelligence, even though Roxas's spaciness isn't really his fault.
** For the Limit Break tutorial, Lexaeus demonstrates the optimal health amount by punching Roxas in the face.
** Larxene complains about having to go on missions with Roxas, is incredibly callous towards him while giving instructions, and is implied to be a jerk to everybody based off of a couple of Demyx's comments.
* JokeItem: Equipping the Mystery or Casual Gears will give an Organization XIII members a silly weapon will weak stats. For example, Zexion gets a huge bologna sandwich and Saïx will wield a giant banana.
* JustifiedTutorial: Roxas is a newly-born Nobody that's just been indoctrinated into the Organization at the beginning of the game, and he lacks any memories of his human life. Since he knows nothing, his fellow members have to inform him about the nature of the Heartless, teach him how to fight, tell him what to do with treasure chests, and explain other game mechanics.
* KeepItForeign: In just about every version, Larxene's weapons have French names. In the French version, they instead have German names.
* KneelBeforeZod: [[spoiler:Saïx]] will occasionally yell "Grovel before me!" at Roxas during his BossBattle.
* LastRequest: [[spoiler:As Xion lays dying in Roxas' arms after their fight at the end of the game, she asks him to "set Kingdom Hearts free" from Organization XIII.]] He fails due to being captured by Riku on the way over to the Organization's castle, although it's implied it's partly assisted by Xion's will, presumably because Roxas was in no condition to actually attempt this without it ending badly.
* LateArrivalSpoiler:
** Roxas is a Nobody. This is a twist in ''VideoGame/KingdomHeartsII'' that ''358/2 Days'' makes clear immediately.
** The only Organization member to return from the Castle Oblivion mission is Axel.
* {{Leitmotif}}: Roxas and Xion each get one of their own. There's also a theme that plays whenever Axel, Roxas, and Xion eat ice cream after missions; a different arrangement of it shows up in ''Birth by Sleep'' when Ven and Lea meet in Radiant Garden.
* LethalJokeWeapon: The various {{Joke Weapon}}s become viable options when equipped with the [[BraggingRightsReward Ultima Weapon panel]], as it increases their damage output dramatically.
* LetsYouAndHimFight:
** [[spoiler:The Organization tries to get rid of either Roxas or Xion by pitting them against each other, with neither of them knowing due to an illusion.]]
** In the games at Olympus Coliseum, [[spoiler:Xigbar]] shows up as a surprise boss. You're expected to fight him seriously and he doesn't disappoint, but after about a minute or so, TheUsualAdversaries interrupt.
* LevelDrain:
** One of the StandardStatusEffects drops the afflicted character's level to 1.
** Fairly late in the game there's a mission where Roxas's level is halved because he's having an "off day". [[spoiler:This is justified when you learn later that Xion had drained a lot of Roxas's power at that point.]]
* LimitBreak: If a character's HP bar gets low enough so the green part is gone and the orange part is all that's visible, holding down the attack button will activate their ultimate move. They can use it for a period of time relative to how much HP is left (less HP means more time), and equipping the Final Limit panel will double that duration while upgrading the attack during the second half. Each character has their own unique move (except for Roxas and Xion, who share theirs), with some requiring spamming the A button, others requiring precise timing when pressing it, and a couple not requiring the attack button at all.
* LipLock: A pretty bad case of it, but it thankfully doesn't come up too often due to text-box dialogue using character portraits. The ''HD I.5 [=ReMIX=]'' theater mode, however, gets hit with this one ''hard'', with gameplay models being generated for a series of cutscene ''with no gameplay''.
* LongSongShortScene: "Vector to the Heavens" is quickly tossed into the cutscene preceding the final battle with [[spoiler:Xion]] in the ''HD I.5 [=ReMIX=]'' cutscene movie instead of having no music like the original game. Since the movie does not recreate any of the in-game fight scenes, the decently long battle theme is only heard for about 40 seconds before it's cut out by the switch to [[spoiler:Xion's death scene]]. Averted in the ''HD I.5+II.5 [=ReMIX=]'' version where a patch added an actual fight scene between [[spoiler: Roxas and Xion]] and the song is now heard for over three minutes.
* LossOfIdentity: Roxas has no memories of his life as a human, and never really regains them.
* LostInTranslation:
** Unless you happen to know Japanese or know enough about culture, Xion being pronounced "Shion" will probably mean absolutely ''nothing'' to you. [[spoiler:Shion is actually the Japanese name of the Tatarian Aster flower, which in Japanese floriography means 'I'll never forget you']].
** Axel's speech about why the sun sets red at the beginning. [[spoiler:Roxas spends a lot of time wondering who the "boy in red" is. And the Japanese word for sky? Sora.]]
* LowLevelRun: Levels, like everything else, are panels, and thus if you don't equip any, you're reduced to level 1.
* LyingToProtectYourFeelings: Axel does this with increasing frequency (and increasing consequences) to both Roxas and Xion, after he discovers Xion's true nature, because he fears their reactions and losing the relationship they've formed. It's not just to protect their feelings either, it's also to protect them ''physically'' since forces outside the organization need them [[spoiler: to complete Sora]] and the organization itself doesn't really value them outside of their ability to use the keyblade. Ultimately it's all for naught, since it ends up tearing trio's friendship apart [[spoiler: and both Roxas and Xion return to Sora anyway]].
* MadeOfIron:
** In the LimitBreak tutorial, Lexaeus cuts Roxas's HP down by hitting him square in the face. Lexaeus is the physically strongest member of the Organization, and ''[[VideoGame/KingdomHeartsChainOfMemories Chain of Memories]]'' shows him being able to shatter boulders with his fists.
** During a mission in Halloween Town, Roxas takes three exploding pumpkins to the face with no adverse effects. These Pumpkins are later shown to be able to blast holes in a stone wall.
* MagicKnight: Xemnas is the best example due to his strength and magic both being near the max, when other specialists have one field with all other stats really low.
* MarathonBoss:
** The fight against Leechgrave takes a significant amount of time, as it's only safe to attack for a short period after its Tentaclaws have been destroyed.
** The Ruler of the Sky is fought while airborne in a huge area, and at some points requires Roxas to [[GetBackHereBoss chase it down]] to hit it.
** The BonusBoss Dustflier has nine and a half health bars and a ton of defense. You spend quite a bit of time running around dodging its near one-shot attacks.
* MeaningfulName:
** Xion's name was liked by Nomura because of its many meanings:
*** ''Shio'' (tide), which connects her to Kairi and Naminé.
*** ''Shion'', which is a flower given to someone to mean "remembrance". [[spoiler:Which is [[RetGone tragically ironic]].]]
*** [[spoiler:Her original name, No. ''i'': In mathematics, ''i'' is used to denote the square root of negative one and is often referred to as an "imaginary number".]]
*** [[spoiler:Lowercase Roman Numerals, like i, used to denote subsections or footnotes underneath the capital ones.]]
*** [[spoiler:Roman numeral I is one... No I... No one...]]
* MechanicallyUnusualFighter: Xigbar's weapons are effectively guns, so he has an ammo counter that determines how many shots he can make before he needs to reload. If he's in the middle of a combo and runs out of ammo, he will continue to attack uselessly.
* MindScrew: Indeed it is.
** The existence of the protagonists themselves is based upon a vaguely defined concept of Nothingness, which is anomalous and shouldn't exist, and the plot revolves around rectifying this.
** Most of your main playthrough of the game is told from Roxas's POV. Unfortunately, Roxas is ridiculously, [[{{Egregious}} egregiously]] left out of the loop.
** The Snarl of Memories cutscene.
* MultiplayerDifficultySpike: The game has the Mission Mode, which has a multiplayer option. The enemies have buffed stats compared to story mode whether you have multiple players or not.
* MyFriendsAndZoidberg: Non-comedic version. [[spoiler:"Just count the seats here. We have and [[{{Foreshadowing}} shall always be]] thirteen."]]
* NoOSHACompliance: Despite being public access, the top of the Twilight Town clock tower has no safety railings to prevent falls.
* ObstructiveCodeOfConduct: The Organization is better about following their Prime Directive than Sora and co. are. 1: Do not reveal the Organization. 2: Remain out of sight of natives. 3: The mission comes before everything. Roxas eventually violates the Directive about the third time [[Disney/PeterPan Tinker Bell]] needs his help.
* OffscreenTeleportation: Zig-zagged. There are a few times where you can see your ally appearing right behind you despite stopping to kill a heartless or getting stuck on something. However, there are other occasions in which you can see them teleport right next to you. [[AcceptableBreaksFromReality Helps keep them from getting stuck on an obstacle.]]
* OneExtraMember: Xion is the the fourteenth member of Organization XIII. [[spoiler:She isn't actually a member or a Nobody, just a Replica designed to absorb Sora's memories. By the end of the game, she was RetGone'd from everyone's memories]].
* OneHitKill:
** Using Fire magic on any of the Bomb Heartless will cause them to immediately explode, killing them instantly.
** During the last mission, Roxas will instantly kill the Neoshadows with his ground attacks.
* OneHitPointWonder: The Extreme accessory will reducer the wearer's max HP to one, though it also allows them to spam {{Limit Break}}s indefinitely.
* OneWingedAngel: As expected for Squeenix final bosses at this point. [[spoiler:Xion]] gets one core transformation with four auxiliary forms to go with it. In a subversion of the [[FinalBoss usual pattern]], however, [[spoiler:she]] is the ''semi''final boss.
* PetTheDog:
** Larxene is a huge {{Jerkass}} and a sadist, but her last interaction with Roxas involves her almost nearly giving him compliment.
** Vexen is normally an InsufferableGenius, but the tutorial mission he runs puts him in a more instructive role than most other members and portrays his attitude somewhat sympathetically.
* PlaceboEurekaMoment: PlayedForLaughs in Larxene's tutorial mission, when she's basically complaining about running a tutorial mission in the first place to the yet-zombie Roxas.
-->'''Larxene:''' You'd be nothing without that Keyblade. ...Oh ho! I just got an idea!\\
'''Roxas:''' ([[OhCrap Uh-oh]])\\
'''Larxene:''' You can do today's mission [[NoGearLevel WITHOUT your Keyblade]].
* PoisonousFriend: A rather tragic example in that Axel knows that the Organization is a dangerous environment for Roxas and Xion, but he also knows [[spoiler:that there are people outside who want to find and destroy them so that Sora can be woken, and that the Organization will also hunt them down if they run.]] To that end, he becomes obsessed with keeping Roxas and Xion in what he perceives as the relative safety of the Organization... and he's willing to do everything from lying to them, to hauling them back bodily to ensure that remains the case.
* PoorCommunicationKills: To a brutal extent; no one in this game tells each other anything, with catastrophic results. Roxas leaves the Organization because no one is willing to tell him who Sora is, where he comes from, and why he can wield the Keyblade. Xion leaves the Organization because the only person who seems to be honest with her is a blindfolded boy who suggests she destroy herself. Axel, due to his conspiracy to undermine the Organization and a healthy dose of fear for what will happen to them if they leave it, relates none of the above information to either Roxas or Xion.
* PostFinalBoss: The "real" final boss is [[spoiler:Xion, whose destruction is the emotional climax of the narrative]]. The fight with Riku afterwards is significantly easier and shorter, acting as more of a formality to lead the game's ending into the prologue of ''VideoGame/KingdomHeartsII''.
%%* PowerTrio: Roxas, Xion and Axel.
* PreviousPlayerCharacterCameo: Sora is mentioned multiple times throughout the game. And when you fight [[spoiler:her, Xion calls on Sora's memories to power herself up.]] But Sora himself is only seen through instances of déjà vu Roxas feels as he visits the different worlds. The bottom screen shows Sora in the same pose Roxas is in through a haze of static.
* PromotedToPlayable: The entirety of Organization XIII, along with Donald and Goofy, are now playable while doing Mission Mode.
* PunchClockVillain: Neither Demyx and Luxord seem particularly evil. Demyx is a huge [[TheSlacker slacker]] who is perfectly willing to ditch Roxas during missions, while Luxord is generally very cordial and likes to organize poker games. Xigbar acts casual and even unprofessional, [[spoiler:but he is actually TheDragon in the Organization's true purpose]].
* RageAgainstTheMentor: [[spoiler:Roxas isn't happy when he learns Axel had been keeping the truth about Xion from him.]] "Didn't have it memorized, huh?"
* RedOniBlueOni: Axel is flippant but friendly while Saïx is all business and exceedingly cold.
* RegionalBonus: The international version awards Mission Crowns for completing missions in either Solo or Multiplayer Mission Mode. In the Japanese version, it is only possible to earn Mission Crowns by playing Multiplayer Mission Mode.
* ReplacementGoldfish:
** [[spoiler: Xion's whole purpose is to serve as one waiting in the wings, as the reason for her creation was to duplicate Roxas's abilities and ensure the Organization would continue to have a keyblade wielder in the event Roxas couldn't be controlled]]. Subverted in that [[spoiler: once she realizes what she is, she's the first to attempt running away from the organization so that Roxas can remain.]]
** Saïx scathingly accuses Axel of using Roxas and Xion as this for himself, due to the fact Axel continues to grow closer to Roxas and Xion while his own relationship with Axel, which had once also been close, increasingly worsens.
* ResignationsNotAccepted: TropeNamer. Towards the end of the game, Roxas decides he's done with Organization XIII and leaves. They still need him for their plan, so Dusks, Samurai, and eventually Saïx show up to prevent his departure by force.
-->'''Saïx:''' We don't accept resignations.
* RetGone: [[spoiler:Since Xion is a being made of memories, upon her death those memories return to Sora and everyone forgets she ever existed]].
* RoaringRampageOfRevenge: At the end of the game, Roxas [[spoiler:wants revenge for losing Xion]], so he goes back to the World That Never Was to destroy the Organization and release Kingdom Hearts. Riku takes him out before he can even get back to the castle, though.
* RunningGag: During the very first mission to [[Disney/{{Aladdin}} Agrabah]], the fact that the city is covered in sand comes up constantly.
* SadBattleMusic: [[spoiler:Xion's]] fight theme, "Vector to the Heavens", is very melancholy and piano-heavy.
* SailorEarth: A ''canon'' example. Secret reports reveal that Xion's name comes from [[spoiler:her Organization number, No. i. As in the ''[[MeaningfulName imaginary]]'' number.]]
* ScrewThisImOutOfHere: Roxas eventually gets so tired of not knowing anything about himself and thinking he's being constantly lied to that he ditches the Organization.
* SecretCharacter: Characters other than the core members of Organization XIII can be unlocked for Mission Mode.
** Progressing through the game automatically unlocks Xion, Riku, Donald, and Goofy over time.
** King Mickey can be unlocked by completing every story mission and purchasing "The King's Return" from the Moogle shop.
** Sora can be unlocked by completing every story mission 100% and purchasing "Sora's Awakening" from the Moogle shop.
** To play as DualWielding Roxas, equip him with the Zero Gear with 3 Ability Units.
* SequentialBoss: [[spoiler:Xion]] has four different forms.
%%* SheFu: Larxene.
* ShipperOnDeck: Xigbar teases Roxas about his relationship with Xion, at one point telling him that "No girl wants a guy who's weaker than her". [[spoiler:It's heavily implied that Xigbar is just screwing with Roxas, as he knows Xion's true nature as a Replica and she looks like Ventus to him.]]
* ShipTease: The Roxas/Xion subtext is paper-thin, and the subtext between the two of them and Axel isn't much better. Xion herself outright says she loves both them in one of the secret reports, and Roxas's friendship with Xion is about as close to love as a Nobody can get. One of their mutual Keyblades is even named after a poem dedicated to parting lovers. Axel's feelings are more complex, but his actions and secret reports make it very clear that they are both important to him.
* ShootTheShaggyDog: [[spoiler:The protagonists can never accomplish ''anything'', or else the BigBad wins and the universe ends. Ouch.]]
%% ShoutOut isn't Trivia. Don't go misplacing it in the Trivia tab.
* ShoutOut:
** If Luxord has the Casual Gear equipped, he wields a "deck" of [=CDs=] called "Finest Fantasy 13". [[VideoGame/FinalFantasyXIII Take a wild guess what the name sounds like?...]]
** One of Demyx's {{Joke Weapon}}s is a giant tennis racket named [[Manga/ThePrinceOfTennis Prince of Awesome]], while his Ultimate Gear weapon is called [[Film/ThisIsSpinalTap "Up to Eleven"]].
** Lexaeus has a weapon called "[[Literature/{{Discworld}} Octiron]]."
** The ring that offers 100% illusion resistance is called "Lose Your Illusion", named similarly to the Music/GunsNRoses double album ''Use Your Illusion''.
* SmashingSurvival: The Hover Ghost's special attack quickly drains your health unless you mash a bunch of buttons to escape.
* SoundtrackDissonance: [[spoiler:Xion]]'s final battle theme -- in stark contrast to the epic orchestral OminousLatinChanting-packed themes of the previous game, this one is a melancholy piano-heavy BossRemix of [[spoiler:her theme]] that truly emphasizes the tragedy of the circumstances.
* SprintShoes: The Haste ability increases running speed while equipped. Leveling it up grants a slightly higher bonus.
* StandardStatusEffects: ''358/2 Days'' introduces a number of these, including very standard ones like Blinded and Silenced, as well as some unorthodox ones like [[FireIceLightning Ignited, Frozen, Shocked]], Air-Tossed, "Shoe-Glued", and Rewound Defense (sets defense to what it was at Level 1).
* StalkingMission: Roxas and Axel end up finding Pete acting suspicious during a mission in Agrabah. The duo decides to put the mission on pause to follow Pete and see what he's up to.
* TheStarscream: Saïx and Axel planned to betray the Organization, sending nearly half of them to Castle Oblivion so they could be killed by Axel and/or Sora and seeking the Chamber of Awakening in the Castle to find out what Xemnas is up to. They don't go through with it however, as Axel forming a close friendship with Roxas and Xion and Saïx's mistreatment of the two causes a rift to form between them.
* {{Tagline}}: "What mattered the most was remembered the least."
* ATasteOfPower: Odd example at the ''end'' of the game: [[spoiler:Day 358 is Deep Dive; you'll play as Roxas dual-wielding Oathkeeper and Oblivion, capable of killing Neoshadows in one hit.]] With the right panel configuration, you can use him in Mission Mode, though not with quite the same level of strength.
* ThankingTheViewer: The credits give a specific mention, along the lines 'to all Kingdom Hearts fans'.
* TitleThemeDrop: During the battle with [[spoiler:Xion]]'s final form, the song that plays is partially remixed from the series' main theme, "Dearly Beloved".
* TomeOfEldritchLore: Most of Zexion's lexicons have ominous-sounding names such as "Illicit Research" and "Indescribable Lore" that paint them as containing some sort of forbidden or dark knowledge.
* TrademarkFavoriteFood: Taken to an almost ridiculous degree where roughly 30% of the cutscenes will involve watching 1-3 people sitting at the top of a clock tower and eating ice-cream.
* TragicKeepsake: The game ultimately reveals that Roxas's trademark ability to dual-wield keyblades came about after [[spoiler:Xion is destroyed and Roxas absorbs the memories that she was made out of, essentially inheriting her keyblade as well. Additionally, the keyblade takes on the form of Oblivion, which traditionally represents Riku but also represents 'the state of forgetting or having forgotten', symbolizing how at this point the memories people had of Xion are fading]].
%%* TraumaCongaLine: Xion and Roxas both get their turns.
* {{Troll}}: Xigbar knows everything about what's really going on but doesn't have a lot to actually do, so he spends most of his time screwing with other members of the Organization. He teases Roxas about his relationship with Xion [[spoiler:knowing that she's his/Sora's Replica that is likely to eventually kill him]], and baits Saïx with vague comments about Xemnas's own dark secrets.
* UndergroundMonkey: Many of the enemies are just palette-swapped variations of other Heartless, including bosses. These variants typically have different elemental powers and weaknesses, though some are just straight-up stronger versions.
* VancianMagic: Unlike ''I'' and ''II'', ''358/2 Days'' lacks an MP meter. It instead has a system similar to ''Chain of Memories''' deck system, where the specific spells you can use and the number of casts you get each mission are based on what panels you have equipped. Spells are typically gone for the rest of a mission when every cast is used up, though you can use items like Ethers to recharge somewhat.
* VillainDecay: Several members, on their off-time and not facing Sora, are a lot less intimidating than they usually are. Noteworthy examples would be Marluxia, who is almost ''nice'', and Larxene, who acts like an AxCrazy psychopath in Castle Oblivion but here is just a LaughablyEvil AlphaBitch who even has some PetTheDog moments.
* VillainProtagonist: Played with. Org. XIII are the villains of the series, but you're playing as their TokenGoodTeammate.
* VillainsOutShopping:
** So much in this game. Demyx spends his time writing songs, Luxord organizes the poker league, and the others like to lounge around in the couches in the Grey Area.
** The manga also provides a panel of Xaldin, Demyx, and Zexion playing [[http://kh13.com/zenphoto/manga/358-2-days/preview/05.png.php Twister]].
** The manga actually has this in ''spades.'' Even members of an evil organization are not immune to the effects of [[http://kh13.com/zenphoto/manga/358-2-days/chapter-11/001.png.php boring monologues]] by their superiors, it seems.
%%* VisibleSilence
* VoiceGrunting: In the DS version, dialogue is mainly text with the occasional grunt or phrase. There are a couple of totally voiced cutscenes, however.
%%* {{WAFF}}: Most of the game, until the WhamEpisode.
* WakeUpCallBoss: The Infernal Engine.
* WatchingTheSunset: Quite a number of the cutscenes involve this. Well, it ''looks'' like this anyway. They're in Twilight Town, which is eternally in those few minutes between day and night, and as such the sun technically isn't setting per se. Just eternally really low on the horizon.
* WeaponizedTeleportation: Grey Caprices deal damage by shooting a ball of energy that force it and its target to swap places.
* WeirdnessCensor: Twilight Town appears to be a ghost town whenever you visit. In fact, [[spoiler: Xion, in her AttackOfThe50FootWhatever form, doesn't attract anyone's attention and she's not only in front of the train station, but is in ''broad daylight''.]]
* WhamEpisode: Once [[spoiler:Xion's]] role in the story is revealed, everything gets much darker.
** WhamShot: Xion removing her hood in front of Roxas to reveal [[spoiler: ''Sora's face''.]]
%%* WhatIsThisThingYouCallLove: Just one of the many emotions Roxas sees (and doesn't understand) in the Disney Characters throughout the game.
%%* WhatMeasureIsANonHuman:
%%** Saïx falls squarely into this trope with his treatment of Xion, for reasons better left unspoiled.
%%** So does [=DiZ=], though that was true in the second full title as well.
* WitchWithACapitalB: One of Demyx's lines when talked to in the [[HubWorld Grey Area]] has him call Larxene a witch, though the context implies that he means bitch.
-->''Man, why's Larxene gotta be such a witch all the time?''
* WolverinePublicity: Mickey Mouse is very prominent on the cover, yet only shows up in one scene that's not even relevant to the story.
* WordSaladTitle: It sounds like one, especially to those who haven't played it. It's so named because the plot describes the events that happened during Roxas's 358 days in the Organization with those days shared by two people.
* YouHaveOutlivedYourUsefulness: [[spoiler:Towards the end of the game, Kingdom Hearts nears completion and Xemnas decides that he doesn't need two Keyblade users anymore. He tricks Roxas and Xion into fighting each other with an illusion that makes them look like a Heartless to each other, hoping that one would kill the other.]]
* TheWorfEffect: [[Disney/BeautyAndTheBeast Beast]] is perfectly capable of taking down Heartless by himself, as seen in his first appearance when he kills a bunch of Neoshadows when one gave Roxas and Xion trouble. When the Infernal Engine shows up and beats him handily, the player knows they're in for a tough fight.

->'''Mission Complete'''\\
RTC authorized. The dark corridor is open.