
The Mushroom XIII are a group of Emblem Heartless that appear in Kingdom Hearts II Final Mix. They are a set of thirteen Heartless that wear black coats and hoods that resemble mushroom caps, with spirals decorating them. Each of the Mushroom XIII Heartless is physically identical, with spherical, pitch-black heads and glowing eyes. They each represent a member of Organization XIII and must be satisfied through challenges and mini-games to be defeated. While some sources suggest that the Organization XIII members' Heartless were ordinary Heartless defeated by Sora, others claim that their Heartless forms were never revealed.
| Characteristics | Values |
|---|---|
| Appearance | Spherical, pitch-black heads and glowing yellow eyes. Black coats with zippers, pull-strings, and hoods that resemble mushroom caps with black spirals. |
| Identification | Each mushroom has a different silver Roman numeral from I to XIII on their backs, representing their rank. |
| Size | The size of each mushroom varies. No. V (or No. 5) is the largest, while No. VIII is the smallest. |
| Behaviour | These Heartless appear after a world is completed and must be satisfied through challenges or scoring enough points. |
| Rewards | Defeating all 13 mushrooms rewards the Winner's Proof Keyblade and the Proof of Peace. |
| Defeating Strategy | Special treatment is required to defeat them, such as satisfying mini-game requirements or using specific attack strategies. |
| Drops | Tranquil Shards, Stones, Gems, Crystals, unique weapons for Goofy and Donald Duck, and Tranquility materials. |
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What You'll Learn

The Mushroom Heartless are Emblem Heartless
The Mushroom Heartless must be defeated through special treatment in the form of mini-games, which are recorded in Jiminy's Journal. Each Mushroom drops Tranquil Shards, Stones, Gems, and Crystals, and can also drop unique weapons for Goofy and Donald Duck. The six odd-numbered Mushrooms drop shields for Goofy, while the six even-numbered Mushrooms drop staves for Donald Duck. Defeating all twelve Mushrooms and completing their challenges will result in the appearance of the thirteenth Mushroom, who will give Sora the Winner's Proof Keyblade and the Proof of Peace.
Each Mushroom has a different size and a different number on its back, representing its rank. For example, No. 1 is the largest Mushroom, referencing Xemnas' role as the leader of Organization XIII, while No. 8 is the smallest. Defeating No. 1 requires hitting it 70 times within 30 seconds, and its \"Reversal\" Reaction Command can be exploited to make it vulnerable to attacks. No. 7 requires long-range attacks and the use of Wisdom Form or Limit Form combos to keep it at bay.
The Mushroom Heartless are friendly enemies that appear after completing a world. They represent the members of Organization XIII and must be satisfied to unlock the Mushroom Master trophy and the Winner's Proof Keyblade for Sora. Each Mushroom presents a unique challenge, such as deflecting projectiles, collecting orbs, or defeating smaller mushrooms within a time limit.
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Defeating the Mushroom Heartless requires special treatment
The Mushroom XIII is a group of Emblem Heartless that appears in Kingdom Hearts II Final Mix. They are a unique set of enemies that can be found exclusively as a boss in the game. Each of the thirteen Heartless in the group wears a black coat, similar to those worn by the members of Organization XIII. The coats have hoods that resemble mushroom caps with two angular black spirals, zippers, and pull-strings. The Heartless emblem is displayed on the front of their coats, and they each have a different silver Roman numeral from I to XIII on their backs, representing their rank.
Each Mushroom XIII Heartless drops Tranquil Shards, Stones, Gems, and Crystals, as well as unique weapons for Goofy and Donald Duck. The odd-numbered Mushrooms drop staves for Donald Duck, while the even-numbered Mushrooms drop shields for Goofy. Defeating all twelve mushrooms and obtaining the Winner's Proof Keyblade and the Proof of Peace unlocks No. 13, which is non-hostile in nature, representing Roxas's unusual nature compared to the rest of the Organization.
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The Heartless are ranked by their Roman numeral
The Heartless are enemies in the Kingdom Hearts video game series. They are formed from darkness and have varying strengths, depending on the amount of darkness in a person's heart. The darker the heart, the more powerful and monstrous the resulting Heartless.
The Organization 13 Mushrooms are a group of enemies exclusive to Kingdom Hearts II Final Mix. They are a type of Heartless, sharing the same spherical, pitch-black heads, glowing eyes, and black coats with the Heartless emblem on the front. Each of the 13 Mushrooms has a different silver Roman numeral from I to XIII on their backs, representing their rank, with their sizes varying accordingly. For example, No. V is the largest, exceeding Sora in size, while No. VIII is the smallest, roughly half of Sora's height.
The Roman numeral system was developed by the Etruscans, who ruled Italy before the Romans, and later adopted by the Romans themselves. Roman numerals are formed from the characters I, V, X, L, D, and M, which represent the numbers 1, 5, 10, 50, 500, and 1000, respectively. While no longer the dominant number system, Roman numerals are still used in certain contexts, such as the names of monarchs and Popes, the titles of sporting events, and book chapter numbers.
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The Heartless are physically identical, except for size
The Mushroom XIII are a group of Emblem Heartless that appear in Kingdom Hearts II Final Mix. They are a unique set of enemies that can be found exclusively as a boss in the game. Each of the Mushroom XIII Heartless shares a common appearance, with spherical, pitch-black heads and glowing eyes. They wear black coats that resemble those worn by Organization XIII, with zippers, pull-strings, and hoods that look like mushroom caps with black spirals.
While the Mushroom XIII Heartless are physically identical in terms of their overall appearance, there are subtle differences that distinguish them. Firstly, they vary significantly in size, with No. V being the largest and No. VIII being the smallest. Secondly, each member of the Mushroom XIII has a different Roman numeral from I to XIII on their backs, representing their rank within the group. These numbers are silver and are a distinct feature of their appearance.
The Mushroom XIII Heartless must be defeated through special mini-games or challenges, which are recorded in Jiminy's Journal. Each Mushroom defeated drops Tranquility materials, and the odd and even-numbered Mushrooms can also drop unique weapons for Goofy and Donald Duck. Defeating all twelve Mushrooms will unlock the Winner's Proof Keyblade and the Proof of Peace for Sora.
The Mushroom XIII Heartless are not the Heartless of Organization XIII members, but they are reminiscent of them in terms of their coat design. The Heartless of Organization XIII members are not explicitly mentioned in the sources provided, but it is stated that they were ordinary Heartless defeated by Sora.
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Defeating the Heartless unlocks the Winner's Proof keyblade
Defeating the Heartless is a crucial aspect of Kingdom Hearts 2, where Sora must take on Heartless and Nobodies to save the worlds. Players can unlock powerful Keyblades and enhance their gameplay potential. One such Keyblade is the Winner's Proof, which serves as a keychain for Sora's Keyblade and is acquired by passing thirteen tests, one for each Mushroom.
The Winner's Proof Keyblade is unlocked specifically by defeating the Mushroom XIII bosses, who are a group of enemies exclusive to Kingdom Hearts II Final Mix. These bosses are variations of other Mushroom Heartless, such as the White Mushroom, Rare Truffle, and Black Fungus, but they bear a resemblance to Organization XIII with their black coats, zippers, pull-strings, and hoods. Each Mushroom XIII member has a different rank indicated by a silver Roman numeral from I to XIII, and their sizes vary significantly.
To defeat the Mushroom XIII bosses, players must employ special strategies as they do with other Mushroom Heartless. For example, to defeat No. 1, players must hit it 70 times within 30 seconds, and its "Reversal" Reaction Command can be challenging to overcome. No. 7 requires long-range attacks and strategic gliding to stay out of its range, as coming into contact with it will send the character flying.
By defeating all the Mushroom XIII bosses and completing their respective mini-games, players can unlock the Winner's Proof Keyblade. This Keyblade has impressive stats, with the highest Magic bonus among Sora's Keyblades in Kingdom Hearts II Final Mix. When the Keyblade strikes an enemy, it produces images of flowers and small stars, some of which include the Mushroom XIII's faces. The Winner's Proof is a powerful tool in battles against Heartless and Nobodies, making it a valuable reward for players' efforts in defeating the Mushroom XIII bosses.
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Frequently asked questions
The Mushroom XIII are a group of Emblem Heartless that appear in Kingdom Hearts II Final Mix. They are a variation of other mushroom heartless like White Mushroom, Rare Truffle, and Black Fungus, but they look more like the latter.
Each of the Mushrooms must be satisfied in a special mini-game in order to be defeated. These mini-games are recorded in Jiminy's Journal. To satisfy a Mushroom, you must score enough points or complete the challenge within a certain amount of time.
When defeated, each of the Mushrooms drops Tranquility materials. The six even-numbered Mushrooms drop Shields for Goofy to wield, while six of the seven odd-numbered Mushrooms drop Staves that can be wielded by Donald Duck. Defeating all 13 Mushrooms will reward Sora with the Winner's Proof Keyblade and the Proof of Peace.

























