Shiro Amano's manga adaptation of the [[VideoGame/KingdomHeartsI popular video game]]. Focuses more on comedy, though. It was originally released in four volumes (which was translated into English by [[{{Creator/Tokyopop}} Tokyopop]]), then the Final Mix version came out, and became three. As of 2013, the Final Mix version is available in English, re-translated by Creator/YenPress and released completely in two volumes.

Unlike the manga adaptations for the other games, ''Kingdom Hearts'' is read from left-to-right, as per western tradition.

* BreakingTheFourthWall: When Captain Hook and his crew are losing to the heroes, Smee pulls a ScrewThisImOuttaHere He turns to the reader and says they'll understand why he's doing this.[[note]]This is not present in the Yen Press translation[[/note]]
* ButtMonkey: Donald Duck. For instance, while Sora and Goofy eventually manage to fly after being sprinkled with fairy dust, Donald falls every time.
* CaptainCrash: Sora's first time as pilot results in him ramming the Gummi Ship into a Meteor near Traverse Town. Donald is completely livid and forbids him from ever piloting it again. [[spoiler: Sora does not [[Manga/KingdomHeartsII listen]] to him...]]
* ChekhovsGun: One of the "title screen" pages for [[Disney/{{Aladdin}} Agrabah]] shows Sora wearing a turban (and it looks very nice on him). Guess what he wears when pretending to be a genie in the [[VideoGame/KingdomHeartsChainOfMemories next game's]] [[Manga/KingdomHeartsChainOfMemories manga adaption]]...
* ChuckCunninghamSyndrome: Halloween Town makes no appearance at all in the manga, despite it's massive popularity.[[note]]Deep Jungle also makes no appearance, but that's because it's [[CanonDiscontinuity no]] [[{{Retcon}} longer]] [[ScrewedByTheLawyers a]] legitimate world.[[/note]]
* EarlyBirdCameo: [[spoiler: Roxas]] makes a cameo appearance in the ''Final Mix'' translation's bonus chapter.
* GettingCrapPastTheRadar:
** Sora gets hit on by a prostitute, despite his young age. He gets really nervous, then the woman gets killed by a Heartless.
** Sora going through Ariel's collection, which his friends called him out on!
* HappinessIsMandatory: You gotta smile at all time, as it is the fuel for the Gummi Ship.
* LighterAndSofter: Than the game version, but still contains some NightmareFuel.
* OhWaitThisIsMyGroceryList: Some of the volumes included a set of one-shot comic strips at the end of the volume, generally featuring an amusing twist on something that happened in the main story. One of the ones at the end of the original Volume 3 featured Aerith trying to decode Ansem's [[spoiler:Xehanort's]] Report. "Ansem the Wise... what were you trying to do...? Pork, onion, carrot, potato, shiitake mushroom... Ansem... You like shiitake mushroom in your curry?!"
* ShipTease: The front cover for chapter 31 ("A Storm, Love, and a New Beginning") ships Sora and [[Disney/TheLittleMermaid Ariel]] together.