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Monstro KH

Monstro Logo KH

Kana/Kanji モンストロ
Romaji Monsutoro
French Monstro
German Monstro
Spanish Monstruo
Italian Balena
Games Kingdom Hearts
Kingdom Hearts: Chain of Memories
Kingdom Hearts Birth by Sleep Final Mix
Kingdom Hearts 3D: Dream Drop Distance

Assistants Riku[KH]
Origin Pinocchio (1940)

Kingdom Hearts tracks
Field theme - A Very Small Wish
A Very Small Wish KH
Battle theme - Monstrous Monstro
Monstrous Monstro KH
Kingdom Hearts: Chain of Memories tracks
Field theme - A Very Small Wish
A Very Small Wish -ReCoM-
Battle theme - Monstrous Monstro
Monstrous Monstro -ReCoM-
Kingdom Hearts Birth by Sleep tracks
Battle theme - Monstrous Monstro
Monstrous Monstro -Arena Ver.-
Other Worlds
Introduced in Kingdom Hearts
Dive to the HeartDestiny IslandsTimeless River/Disney Town/Disney CastleTraverse TownWonderlandOlympus ColiseumDeep JungleAgrabahMonstroAtlanticaHalloween TownNeverlandRadiant Garden/Hollow Bastion100 Acre WoodEnd of the WorldKingdom HeartsRealm of Darkness
Introduced in Kingdom Hearts: Chain of Memories
Land of Departure/Castle OblivionTwilight Town
Introduced in Kingdom Hearts II
Mysterious TowerThe Land of DragonsBeast's CastlePort RoyalPride LandsSpace Paranoids100 Acre WoodThe World That Never WasKeyblade Graveyard
Introduced in Kingdom Hearts coded
Introduced in Kingdom Hearts Birth by Sleep
Dwarf WoodlandsEnchanted DominionCastle of DreamsDeep SpaceMirage Arena
Introduced in Kingdom Hearts 3D: Dream Drop Distance
La Cité des ClochesThe GridPrankster's ParadiseCountry of the MusketeersSymphony of Sorcery
Introduced in Kingdom Hearts χ
Daybreak Town
Introduced in Kingdom Hearts III
Kingdom of CoronaToy BoxArendelleMonstropolisSan FransokyoOlympusThe CaribbeanThe Final WorldScala ad Caelum



Monstro is a world that appears in Kingdom Hearts, taking the form of the insides of a giant whale. Like many of the worlds from the original game, it also appears in Kingdom Hearts: Chain of Memories. Monstro is an immense space whale that swims the Lanes Between, so large that its innards are a world to themselves, similar to Deep Space, and also appeared in the Monster of the Deep battle in Kingdom Hearts Birth by Sleep Final Mix.

However, despite its monstrous size, it is actually fought as a boss in Kingdom Hearts Birth by Sleep Final Mix, in an oceanic arena seemingly based upon Pinocchio's world, Prankster's Paradise. Although Monstro is considered a world, it lacks a Keyhole, and its mobile nature means that Sora and his friends cannot always reach it whenever they try.

Monstro is one of the few worlds in Kingdom Hearts that does not need to be cleared to beat the game, but Geppetto and Pinocchio will not appear in Traverse Town until it is completed. Furthermore, if the player waits until they have cleared Hollow Bastion to venture through Monstro, Riku will not appear in any of the world's cutscenes or battles.

Monstro is unique in that it is a both a world and a character. Plus, this means he is the only world from another world, Monstro's homeworld being Prankster's Paradise.

Journal Entry

Kingdom Hearts Birth by Sleep Final Mix

Pinocchio (1940)

A whale monster that lives in the star ocean.


Monstro is so enormous that its playable map is bigger than that of some other worlds, like Wonderland. If one leaves Monstro and tries to go a different direction, then they will be caught by Monstro again and Monstro will appear twice on the map. Sometimes, attempting to return to Monstro will not work, as Monstro will temporarily leave his spot; Goofy will express his relief at this and the party will have to come back later.


Artwork of one of Monstro's many inner chambers.

Monstro has one of the most confusing layouts of any world; it is essentially an interconnecting maze. It takes a lot of patience and a little ingenuity to make your way all the way through. Many openings open into different parts of the same room, allowing for much confusion of anyone trying to work their way through.

As the surfaces in each area look the same, the only visual differences in the Chambers are the ledges, the treasures, and the occasional Barrel and debris found in them. In addition, the Chambers are marked only with numbers and are not traveled through in numerical order. Finally, Monstro defies anatomy as it is known, so natural assumptions such as going "down" to reach his stomach, for example, do not hold (you have to climb up his throat.)

Monstro (mouth)

Artwork of Monstro's mouth.

Sora and his party enter through Monstro: Mouth, the largest room in the world. Here, among the piles of wood and shipwrecks, the party will come across Geppetto and Pinocchio, as well as the world's Save Point. Troublesome Pinocchio leads the party down the into the whale's innards. Monstro: Chamber 1 is the arrival point for the party here. The lowest door leads to a dead-end at Monstro: Chamber 3, marked by a large piece of debris blocking off the other lowest exit.

The door on the ledge of Chamber 1 will take the party to Monstro: Chamber 2, which leads to Chamber 3 going down, and to Monstro: Chamber 5 going up. Monstro: Chamber 6, which comes soon after, stands out because it is formed like a set of stairs. Chamber 5 will also send the party to Monstro: Chamber 4, from which the Monstro: Bowels and the first battle with the Parasite Cage can be found, as well as a Save Point.

Returning to the Mouth and using High Jump, given by Geppetto, the party can at last reach the Monstro: Throat, a tall, pink chamber with a series of ledges to ascend. At the top, the party can reach the Monstro: Stomach and the second boss battle against the Parasite Cage.

In Chain of Memories, there are extensions coming out of the floor which can be hit or jumped on to gain items. There are also extensions from the walls which can cause damage to Sora or Riku if approached; these can be hit to gain HP orbs.


Kingdom Hearts

Sora, Donald, and Goofy are flying away from Agrabah to get to their next destination, when they spot something huge flying towards them on the Gummi Route. They quickly realize it is a massive whale, but cannot get out of the way before the beast swallows their ship whole.

Inside Monstro's flooded mouth, the trio finds Pinocchio again and meets his father Geppetto in a broken ship. While speaking with Geppetto, Pinocchio slips off to explore Monstro. Sora and his party quickly run after the puppet into the bowels of Monstro. There, he finds Riku; the two friends exchange some quick words before Riku runs off with Pinocchio, hinting at Riku's newfound darker nature.

Sora, Donald, and Goofy chase the two through the whale, until they eventually finds them in a large circular chamber: the bowels of the beast. Pinocchio is taken captive inside the Parasite Cage Heartless. Sora and Riku team up to take down the Heartless, but are unable to completely destroy it. Riku takes Pinocchio; his words hint to Sora that there is something different about his old friend. Sora tracks the puppet to the Stomach, where Riku and the Heartless attempt to take Pinocchio's heart, but fail. Riku flees as Sora enters the belly of the beast where he defeats the Parasite Cage once and for all and rescues Pinocchio.

From all the commotion in his organs, Monstro spews out the Gummi ship and the trio to prevent any more trouble. Pinocchio and Geppetto also escape and set up a shop in Traverse Town.

There are alternate cutscenes for this world if the player chooses to complete Monstro after the defeat of Riku and Maleficent and sealing the keyhole in Hollow Bastion. Instead of Riku helping to fight the first Parasite Cage, Sora will fight only with Donald and Goofy. Once Riku abducts Pinocchio, he leaves the mouth area as soon as Sora arrives, preventing his face from being seen. Once Sora makes his way to the Stomach, he questions what Riku is doing. Riku replies by asking if Sora remembers his best friend or not. Sora accuses Riku of being a fake, knowing what has already become of Riku after his visit to Hallow Bastion. Riku does not reply, instead the Parasite Cage arrives and Riku uses a dark portal to leave the world.

Kingdom Hearts: Chain of Memories

Sora, Donald, and Goofy visit a recreation of Monstro in Castle Oblivion. There, the three meet Geppetto who is hoping to find his son, Pinocchio, who went missing. When Sora finds Pinocchio, he tells them that he is trying to find a way to get them out of Monstro, but is not having much luck. As they chase after Pinocchio he is caught by the Parasite Cage.

The party again fights the Parasite Cage, though only once this time. Pinocchio is told to be brave, and his struggles eventually getting him out of the Heartless's maw-like belly. Sora, Donald, and Goofy then fight several Shadow Heartless in order to make Monstro spit out Pinocchio and Geppetto, as per the puppet's suggestion that a big enough struggle would cause the whale to sneeze. This fight is treated as a mini-game, making Monstro the only world to have a mini-game besides 100 Acre Wood.

Kingdom Hearts 3D: Dream Drop Distance

Monstro appeared during Riku's visit to Prankster's Paradise. Riku had engaged in a mission to find Pinnocchio for Geppetto, and eventually found him, at the hands of a hooded figure who could possibly be his own Replica. Before getting any explanations, a huge tremor occured inside Monstro, forcing the figure to leave and Riku to let both Pinocchio and Jiminy behind. After Riku defeated the Dream Eater that was fighting Sora, reversed with elemental powers, he came back and sealed the world's Keyhole of Sleep, which was inside Monstro's mouth.


Monstro is a boss exclusive to Kingdom Hearts Birth by Sleep Final Mix. It is fought within the Monster of the Deep battle. The battle will be made up of a timed stage where the player can attack Monstro directly, and an acid-filled stage within Monstro's belly where the player is sent once the three minutes run out. The player must defeat the Unversed within Monstro to escape and try to damage Monstro further.


KH1 icon Name Journal Entry
Pinocchio KH
Pinocchio (ピノキオ Pinokio?)
See Gallery

Crafted by Geppetto and brought to life by the Blue Fairy. He'd have lost his heart to the Heartless if I hadn't come to the rescue. Now he's living in Traverse Town with Geppetto and working hard to become a real boy.

There were no strings to hold him down in "Pinocchio" (1940).

Geppetto KH3D
Geppetto (ゼペット Zepetto?)
See Gallery

The kind, gentle clock maker. Sora and friends helped him escape from Monstro's belly. These days he's living in Traverse Town and looking forward to the day Pinocchio becomes a real boy.

He provided shelter in "Pinocchio" (1940).

COM image Name Journal Entry
Pinocchio KH
Pinocchio (ピノキオ Pinokio?)
See Gallery

A wooden puppet Geppetto made, brought to life by the Blue Fairy. To become a real boy, Pinocchio has to learn bravery, kindness, and honesty. He and Geppetto were swallowed by Monstro, but they escaped with a little help from us.

Geppetto KH3D
Geppetto (ゼペット Zepetto?)
See Gallery

A gentle and earnest clockmaker who carved Pinocchio from a block of wood.

Geppetto was swallowed by Monstro, boat and all, while searching for Pinocchio.

The two were reunited inside the giant whale, and escaped with our help.



Note: After rescuing Kairi from Hollow Bastion, Monstro will begin collecting sets of Heartless from every world except Atlantica, Hollow Bastion, and End of the World. Each time Monstro is entered at this point, it will have its normal set of Heartless, as well as the Heartless set of a different world. The auxiliary set will change each time Monstro is reentered.

Note: In the Monster of the Deep boss fight, several Unversed, such as Bruiser, Triple Wrecker and Axe Flapper are fought in order to exit Monstro and attack him.


Type Items Found Locations Notes
Regular Cottage x 2 Mouth, Chamber 2
Megalixir x 2 Chamber 2, Chamber 6
Mega-Ether x 2 Chamber 3, Chamber 5
Gummis Dispel-G x 2 Chamber 5, Chamber 6
Tornado-G x 2 Mouth, Chamber 3
Synthesis Mythril x 2 Chamber 5, Chamber 6
Special Watergleam Mouth On the tallest rock in the Mouth; near entrance
High Jump Mouth On Geppetto's ship after first Parasite Cage battle.
Torn Page Chamber 6
Boss Location Reward
Parasite Cage Bowels Cheer
Parasite Cage Stomach Stop


  • 55, 56, & 57 - Chamber 3 on one of the mid-level ledges.
  • 73, 74, & 75 - Mouth, on the tall pile of wreckage next to Geppetto's ship.
  • 76, 77, & 78 - Chamber 3 on the highest ledge in the room.
  • 79, 80, & 81 - Chamber 5, on the high ledge.

Trinity Marks

Type Location Notes Reward
Blue Mouth On the platform on top of the tall rock in the center of the Mouth. Potion x 2, Cottage and Munny
Chamber 5 On the ground right in front of the lower entrance from Chamber 6. Cottage and Munny
Throat In the center of the floor of the room. Mythril Shard and Munny
Green Mouth On the roof of Geppetto's ship; requires High Jump. Mythril Shard
White Chamber 6 In the low-lying area behind the tallest "step". Thundaga-G/ Dark Matter (Final Mix)

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