Editing Mushroom XIII

{{game|FM2}}
{{cleanup|Finish reformatting article, confirm that S rank Drive orbs differ between even and odd, see notes on prizes, use correct terms, verify that Munny values map correctly (Japanese terminology was small/medium/large, American terminology is 1/5/10/20); make sure to differentiate between what "Sora must do" in order to complete the minigame, and what he must do to get an S rank.}}
{{Character
 |name=Mushroom XIII
 |katakana=XIIIキノコ
 |romaji=XIII Kinoko
 |fr=Bolets XIII
 |de=XIII-Pilze
 |image=[[File:Mushroom XIII (Group) KHIIFM.png|300x400px]]
 |tab1=Group
 |image2=[[File:Mushroom XIII KHIIFM.png|300x400px]]
<!--sizes:
1: 343
2: 231
3: 253
-->
 |tab2=Individual
 |game1=Kingdom Hearts II Final Mix
 |type=Emblem Heartless
 |spec=HeartlessBoss
 |s1=White Mushroom
 |s2=Black Fungus
 |s3=Rare Truffle
 |s4=Pink Agaricus
 |s5=Gold Tricholoma
 |journalKH2='''No. 1'''<br>The strongest Heartless of the bunch. It moves quickly and deals precise attacks.<br><br>Attack it to earn points! As soon as it performs Reversal, perform your own Reversal to catch it off guard.<br><br>'''No. 2'''<br>A Heartless that attacks with a barrage of magic projectiles.<br><br>Avoid its attacks to earn points. Launch them back to earn even more points!<br><br>'''No. 3'''<br>A clumsy Heartless that drops valuable items.<br><br>Chase it to collect what it's lost! At times it's known to drop a whole trove of goodies.<br><br>'''No. 4'''<br>A Heartless that loves a good game of tag—and loves being "it."<br><br>It summons allies while chasing its enemies; don't let their sheer number overwhelm you. Defeat them one at a time for victory.<br><br>'''No. 5'''<br>A tough Heartless that regenerates HP as it sleeps.<br><br>Defeat it by hitting it fast and hard to drain its HP.<br><br>'''No. 6'''<br>A Heartless that creates copies of itself, and attacks using various formations.<br><br>Figure out which formation it's using and quickly work out a plan of action!<br><br>'''No. 7'''<br>A dangerous Heartless with a violent streak.<br><br>If you get too close, it'll blast you away. Defeat it with long-range attacks like magic.<br><br>'''No. 8'''<br>A Heartless buried in the ground, waiting to be pulled out.<br><br>Once you pull it out, keep attacking until it's dead. Make sure you don't drop it!<br><br>'''No. 9'''<br>A Heartless that loves to dance. Hit it, and it won't stop spinning.<br><br>Attack quickly and repeatedly to keep it spinning out of control.<br><br>'''No. 10'''<br>A Heartless that confuses its enemy by creating copies of itself.<br><br>Defeat it by finding and attacking its real form.<br><br>'''No. 11'''<br>A poor Heartless that's always being chased by a mysterious number.<br><br>Attacking it will reduce the number. Transform the number to 0 as quickly as possible!<br><br>'''No. 12'''<br>A Heartless that warps to various areas on the map only to mock Sora.<br><br>Defeat it by locking on to it or using long-ranged attacks!<br><br>'''No. 13'''<br>A Heartless that appeared alongside an ethereal flash of light.<br><br>It bestowed upon Sora a treasure, as proof of defeating the rest of its kind.
 |KH2phys=x0.5<ref>Weapon vulnerability is x1.0 for No. 5, 7, and 10.</ref>
 |KH2fire=x0.5
 |KH2bliz=x0.5
 |KH2thun=x0.5
 |KH2dark=x0.5
 |KH2neut=x0.5<ref>Other vulnerability is x1.0 for No. 5, 7, and 10.</ref>
 |KH2world=Various (See below)
 |KH2reward=''See [[#Prizes|Prizes]]''
}}
The '''Mushroom XIII''' are a group of [[Emblem Heartless]] that appears in ''[[Kingdom Hearts II Final Mix]]''. All thirteen Heartless that make up the group wear [[black coat]]s and, like other Mushroom Heartless, must be satisfied in a special mini-game in order to be defeated. As [[Sora]] completes the challenges issued by the Mushroom XIII, his results are recorded in [[Jiminy's Journal]].
{{TOCleft}}
{{-}}

==Prizes==
When defeated, each of the Mushroom XIII drops [[Tranquility]] materials. The six even-numbered Mushroom Heartless drop Shields for [[Goofy]] to wield, while six of the seven odd-numbered Mushroom Heartless drop Staves that can be wielded by [[Donald Duck]]. Fulfilling the highest requirements for odd-numbered and even-numbered Mushroom Heartless unlocks the [[Premium Mushroom]] and [[Ultimate Mushroom]], respectively. When the thirteenth Heartless has been satisfied, Sora obtains the [[Proof of Peace]] and the [[Winner's Proof]] Keyblade.
<!--Please confirm and writeup:
-A Prize stacks
-B Prize does not stack, ranks A-D have two options of prizes
-->
{{sec-stub}}
{|border=1 cellpadding=2 cellspacing=0 style="text-align:center; font-size:90%" align="center" width=525px
|-style="{{style|kh2|a}}"
!rowspan="2"|Rank||rowspan="2"|Type A Reward||colspan="3"|Type B Reward
|-style="{{style|kh2|b}}"
!Chance||Reward (Odds)||Rewards (Evens)
|-
!S
|Munny (large) x5<br>Munny (medium) x4<br>Munny (small) x4<br>[[Tranquility Crystal]] x2<br>[[Tranquility Gem]] x1<br>[[Tranquility Stone]] x1<br>[[Tranquility Shard]] x1<br>[[Tent]] x1<br>[[Drive Recovery]] x2
|100%||(3) MP prize x5<br>(1) Drive orb x5<br>(5) Drive orb x5<br>[[Premium Mushroom]] x1||(5) HP prize x5<br>(3) Drive orb x5<br>(5) Drive orb x5<br>[[Ultimate Mushroom]] x1
|-
!rowspan="2"|A
|rowspan="2"|Munny (large) x5<br>Munny (medium) x4<br>Munny (small) x4<br>[[Tranquility Crystal]] x2<br>[[Tranquility Gem]] x1<br>[[Tranquility Stone]] x1<br>[[Tranquility Shard]] x1<br>[[Tent]] x1<br>[[Drive Recovery]] x2
|90%||(3) MP prize x3<br>[[Precious Mushroom+]] x1||(5) HP prize x3<br>[[Majestic Mushroom+]] x1
|-
|10%||(3) MP prize x5<br>(1) Drive orb x5<br>(5) Drive orb x5<br>[[Premium Mushroom]] x1||(5) HP prize x5<br>(1) Drive orb x5<br>(5) Drive orb x5<br>[[Ultimate Mushroom]] x1
|-
!rowspan="2"|B
|rowspan="2"|Munny (medium) x4<br>Munny (small) x4<br>[[Tranquility Crystal]] x1<br>[[Tranquility Gem]] x1<br>[[Tranquility Stone]] x1<br>[[Tranquility Shard]] x1<br>[[Tent]] x1<br>[[Drive Recovery]] x2
|85%||(3) MP prize x3<br>[[Precious Mushroom]] x1||(5) HP prize x3<br>[[Majestic Mushroom]] x1
|-
|15%||(3) MP prize x3<br>[[Precious Mushroom+]] x1||(5) HP prize x3<br>[[Majestic Mushroom+]] x1
|-
!rowspan="2"|C
|rowspan="2"|Munny (medium) x1<br>Munny (small) x4<br>[[Tranquility Gem]] x1<br>[[Tranquility Stone]] x1<br>[[Tranquility Shard]] x1<br>[[Tent]] x1<br>[[Drive Recovery]] x1
|75%||(1) MP prize x3<br>[[Plain Mushroom+]] x1||(1) HP prize x3<br>[[Joyous Mushroom+]] x1
|-
|25%||(3) MP prize x3<br>[[Precious Mushroom]] x1||(5) HP prize x3<br>[[Majestic Mushroom]] x1
|-
!rowspan="2"|D
|rowspan="2"|Munny (small) x4<br>[[Tranquility Stone]] x1<br>[[Tranquility Shard]] x1<br>[[Tent]] x1<br>[[Drive Recovery]] x1
|65%||(1) MP prize x3<br>[[Plain Mushroom]] x1||(1) HP prize x3<br>[[Joyous Mushroom]] x1
|-
|35%||(1) MP prize x3<br>[[Plain Mushroom+]] x1||(1) HP prize x3<br>[[Joyous Mushroom+]] x1
|-
!E
|Munny (small) x1<br>[[Tranquility Shard]] x1<br>[[Tent]] x1<br>[[Drive Recovery]] x1
|55%||(1) MP prize x3<br>[[Plain Mushroom]] x1||(1) HP prize x3<br>[[Joyous Mushroom]] x1
|}

==Design==
[[File:Mushroom XIII Sprite KHIIFM.png|left]]
For the most part, each Mushroom is physically identical. The Mushroom Heartless all sport the same spherical, pitch-black heads and glowing, yellow eyes. They all wear black coats reminiscent of those worn by the members of Organization XIII; these coats are adorned with similar zippers, pull-strings, and hoods, although the hoods resemble mushroom caps and have twin angular, black spirals decorating them. The Heartless emblem appears on the front of each of the Mushroom XIII.

Only two differences exist between the Mushroom XIII: the Heartless are all different sizes, and they all sport different numbers on their backs. The Roman numerals on the backs of the Mushroom XIII are silver and range from I to XIII. These numbers denote the rank of a particular Mushroom Heartless. The sizes of the Mushroom XIII vary greatly; No. 5 is the largest Mushroom Heartless, while No. 8 is the smallest, being roughly half as tall as Sora.

The Mushroom XIII's collective name refers to its members' mushroom-like shape and resemblance to Organization XIII.
<gallery>
Mushroom XIII (Portrait) KHIIFM.png|A Mushroom XIII member's journal portrait in ''Kingdom Hearts II Final Mix''.
Mushroom XIII (Portrait) KHIIHD.png|A Mushroom XIII member's journal portrait in ''Kingdom Hearts HD 2.5 ReMIX''.
Mushroom Master Trophy KHIIFM.png|A Mushroom XIII member on the Mushroom Master trophy in ''Kingdom Hearts HD 2.5 ReMIX''.
</gallery>

==List of members==
===No. 1===
{{Mushroom
|name=No. 1
|SA=99|SB=99
|AA=90 – 98|AB=94 – 98
|BA=70 – 89|BB=80 – 93
|CA=60 – 69|CB=65 – 79
|DA=50 – 59|DB=55 – 64
|EA=40 – 49|EB=45 – 54
}}
{{Q|Press {{button|t}} to begin the duel! Catch him off guard and unleash your attacks!|Information}}
'''No. 1''' appears at [[Memory's Skyscraper]] after [[Xemnas]] is defeated. Sora has 30 seconds to hit it as many times as he can.

No. 1 will continuously attempt to use [[Reversal]] to get behind Sora, but this will allow Sora to use his own "Reversal" and "[[Quick Slide]]" reaction commands. Once both commands expire, No. 1 will dash at Sora, knocking him back. If Sora can get behind the Mushroom with either Reversal or Quick Slide, the Mushroom will become confused and drop its guard. The key to defeating it is to wait past Reversal for the more effective Quick Slide, which instantly makes the Mushroom open to damage—it is also possible to make the Mushroom vulnerable using Reversal, but requires at least two uses and often sends Sora in the wrong direction, negating its effect. The window on Quick Slide is very small, and Sora can only deal nine hits at a time, so it is recommended to use Wisdom Form or Final Form in order to deal them as quickly as possible.

Like Xemnas, this Heartless has the "Reversal" reaction, and like the Memory's Contortion battle, the key to dealing damage and avoiding being stunned is to use good timing with the reactions instead of mashing them as soon as possible. Its large size is a reference to Xemnas's role as the Superior of Organization XIII, and its location is a reference to the first battleground with Xemnas.
{{-}}

===No. 2===
{{Mushroom
|name=No. 2
|SA=99|SB=99
|AA=95 – 98|AB=97 – 98
|BA=80 - 94|BB=87 – 96
|CA=70 – 79|CB=75 – 86
|DA=65 – 69|DB=67 - 74
|EA=60 – 64|EB=62 - 66
}}
{{Q|Press {{button|t}} to begin the duel! Avoid the enemy's magic spells!|Information}}
'''No. 2''' appears at the [[Christmas Tree Plaza]] after [[the Experiment]] is defeated. Sora must avoid being hit by its projectile attacks.

No. 2 will circle Sora, strafing him with magic projectiles.{{?}}<!--expand discussion of its behavior--> The key to defeating it is to parry or dodge its attacks using [[Auto Assault]], [[Guard]], [[Aerial Dodge]], or [[Reflect]], making sure to face the Mushroom as much as possible.{{?}}<!--Ultimania recommends Combo Plus? Can anyone figure out why?--> [[Stitch]] is a helpful supplement to these, as he will restore MP and occasionally deflect projectiles. <!--When the player sees the mushroom shoot a bunch of projectiles at Sora in a circular shape, using Reflega will deflect the projectiles back to hit the mushroom, which increases the score more than dodging them.-->

Like [[Xigbar]], it shoots projectiles that must be deflected.
{{-}}

===No. 3===
{{Mushroom
|name=No. 3
|SA=500|SB=500
|AA=490 – 499|AB=495 – 499
|BA=450 – 489|BB=470 – 494
|CA=400 – 449|CB=425 – 469
|DA=350 – 399|DB=375 – 424
|EA=250 – 349|EB=300 – 374
}}
{{Q|Press {{button|t}} to begin the duel! Collect the items that drop!|Information}}
'''No. 3''' appears at the {{c|Bridge|bc}} after [[Xaldin]] is defeated. Sora has a set amount of time{{?}}<!--specify--> to collect as many dropped prizes{{?}}<!--specify; 500 total(?)--> as possible.

No. 3 will run back and forth across the Bridge, slowly at first but gradually picking up speed. The key to defeating it is to equip as many [[Draw]] abilities as possible while using [[Glide]] or [[Quick Run]], supplemented by [[Final Form]] and [[Wisdom Form]] if desired, to stay close to the Mushroom. The dropped prizes{{?}} quickly disappear, and at a regular pace{{?}}<!--8 times(?)--> the Mushroom will drop larger clumps of prizes{{?}}. The key is to stay not too close to it, as doing so might accidentally prevent some prizes from being picked up; Sora should stay only somewhat mid-ranged from it in order to solely focus on picking up the prizes just as they fall (as well as stay on the ground).

Thus, the most optimal setup for S ranking the challenge tends to be synthesizing 4 Draw Rings total to equip onto Sora + his own Draw ability copies, and to activate a possibly maxed out Level 7 Wisdom Form for its MAX Level Quick Run (as Sora in his normal form can only have Growth Abilties up to Level 3). Because of the stacked Draws, Sora needs to only stay at the center line of the bridge and to go back and forth to trail the mushroom somewhat loosely so he can directly pick up the prizes with ease; being in midair/jumping to pick them up as they drop is ineffective at best.

Like Xaldin, it flies back and forth across the Bridge, and the prizes it drops resemble the spheres{{?}} on which Sora uses [[Learn]] during the Xaldin battle.{{?}} Its location is a reference to the battleground with Xaldin.
{{-}}

===No. 4===
{{Mushroom
|name=No. 4
|BA=85+
|CA=70 - 84|CB=77+
|DA=60 - 69|DB=65 - 76
|EA=50 - 59|EB=55 - 64
}}
{{Q|Press {{button|t}} to begin the duel! Defeat the enemy without getting caught!|Information}}
'''No. 4''' appears at the [[Palace Gate]] after [[Shan-Yu]] is defeated. Sora must hit 85 clones without getting hit. A recommended strategy is to hit the first batch of clones normally, and then use Final Form to fly around and ram into the clones with the spinning Keyblades or using Thundaga with the Photon Debugger equipped. The Form may run out near the end of the duel when the clones are stronger, so Sora should keep a distance and use Thundaga to destroy the last few clones and reach 85. An easier alternative is to use the Wisdom Form and move in a circular motion across the square while using [[Wisdom Shot]], this way Sora can hit several clones at once without being hit. The Wisdom Shot combo finisher often slows Sora down towards the end of it, so equipping [[Berserk Charge]] and emptying the [[MP Gauge]] for a never-ending combo is also a good idea with [[MP Haste]]-type abilities removed to maximize the time used for Berserk Charge. If Sora's MP replenishes, use Blizzard or Thunder to quickly drain it again while still damaging the clones.

Its cloning trait references [[Vexen]]'s ability to create [[Replica]]s while avoiding being hit, which is reminiscent of the Chilly Academic's cowardice.
{{-}}

===No. 5===
{{Mushroom
|name=No. 5
|SA=00'03"00 or lower|SB=00'03"00 or lower
|AA=00'03"01 - 00'05"00|AB=00'03"01 - 00'04"00
|BA=00'05"01 - 00'10"00|BB=00'04"01 - 00'07"00
|CA=00'10"01 - 00'30"00|CB=00'07"01 - 00'20"00
|DA=00'30"01 - 01'00"00|DB=00'20"01 - 00'45"00
|EA=01'00"01 - 01'40"00|EB=00'45"01 - 01'20"00
}}
{{Q|Press {{button|t}} to begin the duel! Attack continuously, and don't let him heal!|Information}}
'''No. 5''' appears in the [[Cave of Wonders: Treasure Room]]. Sora must defeat it in 10 seconds, without letting its health regenerate. For its fast attacks, [[Master Form]] is best used when defeating No. 5, as this gives it less recovery time. [[Limit Form]]'s Zantetsuken ground combo finisher is also extremely helpful, as it can easily chop away an entire bar of the Mushroom's health (especially with one Finishing Plus or two equipped + the Decisive Pumpkin Keyblade). Another strategy is to use Final Form, equipped with Fire Boost and the Bond of Flame, and keep attacking with Firaga.

Even then, this mushroom if one plans to S rank it, requires significant raw power, thus Level 1 Critical Mode runs may often involve skipping this mushroom if one has not bothered to pump Sora with a sufficient amount of either Power Boosts or Magic Boosts. Otherwise, Final Form's Auto Assault ability with usage of Glide nudging is the only other way (with high stat Keyblades equipped) to possibly S rank the challenge.

Its regenerating health is similar to the Power Meter of the [[Lexaeus]] Absent Silhouette battle. It is also the largest of the Mushrooms, narrowly exceeding No. 1, also referencing Lexaeus's size compared to the other Organization members.
{{-}}

===No. 6===
{{Mushroom
|name=No. 6
|SA=00'31"00 or lower|SB=00'31"00 or lower
|AA=00'31"01 - 00'40"00|AB=00'31"01 - 00'35"00
|BA=00'40"01 - 00'45"00|BB=00'35"01 - 00'42"00
|CA=00'45"01 - 01'05"00|CB=00'42"01 - 00'55"00
|DA=01'05"01 - 01'20"00|DB=00'55"01 - 01'12"00
|EA=01'20"01 - 01'30"00|EB=01'12"01 - 01'25"00
}}
{{Q|Press {{button|t}} to begin the duel! Quickly defeat the enemies that appear!|Information}}
'''No. 6''' appears at the [[Underworld Caverns: Atrium]], where [[Demyx]] was first fought. Sora must defeat all of the clones within 45 seconds. The clones appear in groups of six, though the initial one must be attacked first. Notable patterns are appearing in circles, which make Firaga most useful, appearing in straight lines, making Blizzaga most useful, and appearing in vertical lines, making Thundaga most useful. The clones are very weak, so it is recommended to take advantage of Final Form, which not only allows powerful magic but also makes the Keyblades strike adjacent foes when Gliding or jumping, making it much easier to defeat the mushrooms in more difficult formations.

Magic Lock-On is heavily recommended in order to have especially the Thundaga casts automatically lock-on to any targets; the second-to-final formations on the right side of the door should also be tackled first due to being spaced further apart than the formation on the left. The formations also all appear in the same exact formations each time, requiring memorization and developed reflexes for each attempt if aiming for an S rank. MP management with Ethers (or Elixirs) WITHOUT HITTING MP CHARGE is also just as vital.

The clones are reminiscent of the boss battle against [[Zexion]] in the "Reverse/Rebirth" mode of ''Kingdom Hearts Re:Chain of Memories'', and the various formations may recall those of the various book clones in the Absent Silhouette fight.
{{-}}

===No. 7===
{{Mushroom
|name=No. 7
|SA=00'03"00 or lower|SB=00'03"00 or lower
|AA=00'03"01 - 00'05"00|AB=00'03"01 - 00'04"00
|BA=00'05"01 - 00'10"00|BB=00'04"01 - 00'07"00
|CA=00'10"01 - 00'30"00|CB=00'07"01 - 00'20"00
|DA=00'30"01 - 00'40"00|DB=00'20"01 - 00'35"00
|EA=00'40"01 - 01'00"00|EB=00'35"01 - 00'50"00
}}
{{Q|Press {{button|t}} to begin the duel! Defeat the enemy while avoiding its attacks!|Information}}
'''No. 7''' appears in the [[Tunnelway]]. Sora must defeat it in 10 seconds. However, coming in contact with the Mushroom will send him flying.

The key to defeating No. 7 is by using long-range attacks. Wisdom Form works well, though Sora will have to keep gliding away from No. 7. Alternatively, one can use Limit Form's Sonic Blade, Strike Raid and Ragnarok combos to keep it at bay. Using Donald's Fantasia or Flare Force allows for easy damage while also keeping Sora invincible, allowing him to attack in conjunction. However, the most effective method is to use Reflega while in Final Form, although Thundaga can also work when used in tandem with Thunder Boost + the Photon Debugger (especially when properly unleashed during a Reflega damage blast for combined combo damage). Getting blown away while using Final Form additionally allows Sora to land extra hits, but still may waste time for those who intend to S rank the battle.

The Mushroom's apparent show of anger and it sending Sora flying on contact are similar to [[Saïx]]'s Berserk state, and the attacks he uses in that state.
{{-}}

===No. 8===
{{Mushroom
|name=No. 8
|SA=99|SB=99
|AA=95 - 98|AB=97 - 98
|BA=85 - 94|BB=90 - 96
|CA=60 - 84|CB=72 - 89
|DA=55 - 59|DB=57 - 71
|EA=50 - 54|EB=52 - 56
}}
{{Q|Press {{button|t}} to begin the duel! Once you pull it out, don't let it touch the ground!|Information}}
'''No. 8''' appears at {{c|The Tower|twt}}. The objective is to bounce the mushroom around like a ping-pong ball 85 times, similar to the [[Rare Truffle]] in the first game.

One way to defeat the challenge is to equip Berserk Charge and remove all [[MP Haste]]-type abilities, use Cure to empty the MP Gauge, then repeatedly hit the Heartless with Horizontal Slash or Master Form attacks<!--is there an ability for the basic slash?-->. If MP refills before the desired hit count has been reached, use Trinity Limit to deal the final few hits. The [[Fenrir]] Keyblade is the best for this fight, as it has the longest reach of any Keyblade in the game.

However, the difficulty of this mushroom comes from the fact that roughly every 15-to-30 hits, as well as upon reaching 50 hits, it will be launched away from Sora forcing him to have to move after it even if a combo finisher doesn't connect on it (unlike the balloon during the Grandstander minigame). Because of this and the shape of the room being awkward at best, making use of Master Form to juggle the mushroom continuously can be difficult as it may force Sora to glide away from it as the mushroom is being air combo'ed, and there is also a chance it may fly out of range of Horizontal Slash; both these scenarios can also be true if both Sora and the mushroom contact the invisible ceiling of the room.

An alternate way of doing this is to equip as much [[Combo Plus]]es and [[Finishing Plus]]es as possible, activate Wisdom Form, and then pelt the mushroom with Wisdom Shot combos. After a Wisdom Shot combo finisher, cast one or two Thundaga finishers to finish the combo. Equipping [[Magic Lock-On]] makes this easier due to it automatically locking on to the Mushroom and increasing Thundaga's range. While Berserk Charge is also recommended for this strategy, the challenge becomes significantly easier with no need to cast spells if one can juggle the mushroom into any corner of the room (around any of the trees), where Sora can simply just shoot away from the proper position/distance to rack up hits without any extra movement.

It is similar to the Overtake Reaction Command in [[Axel]]'s boss fight on the 6th Day of the Prologue. Its small size could be a reference to Axel's waning loyalty to the group. It must also be pulled out of the ground to attack it, similar to the Assassin Nobodies.
{{-}}

===No. 9===
{{Mushroom
|name=No. 9
|SA=99|SB=99
|AA=95 - 98|AB=97 - 98
|BA=75 - 94|BB=85 - 96
|CA=70 - 74|CB=72 - 84
|DA=60 - 69|DB=65 - 71
|EA=50 - 59|EB=55 - 64
}}
{{Q|Press {{button|t}} to begin the duel! Attack and keep the enemy spinning!|Information}}
'''No. 9''' appears at the [[Castle Gate]] after [[Demyx]] is defeated. Sora must hit it 75 times without letting it stop spinning. This can be accomplished by attacking with [[Berserk Charge]] (either through the copy Sora learns or through the [[Fatal Crest]] Keyblade) and [[Horizontal Slash]] equipped and all [[MP Haste]]-type abilities removed, a combination which can land up to 99 hits for an easy S rank.

However, the player should be sure to unleash the Horizontal Slashes at a low-enough aerial height; too high overhead will likely cause any of them to whiff and thus have a high chance to fail the streak.

The Mushroom's spinning, or dancing, is a reference to Demyx's association with music and control of [[Dancer]] Nobodies. It is also the location where the Melodious Nocturne met his end.
{{-}}

===No. 10===
{{Mushroom
|name=No. 10
|SA=00'36"00 or lower|SB=00'36"00 or lower
|AA=00'36"01 - 00'39"00|AB=00'36"01 - 00'37"00
|BA=00'39"01 - 00'55"00|BB=00'37"01 - 00'47"00
|CA=00'55"01 - 01'20"00|CB=00'47"01 - 01'07"00
|DA=01'20"01 - 01'40"00|DB=01'07"01 - 01'30"00
|EA=01'40"01 - 02'00"00|EB=01'30"01 - 01'50"00
}}
{{Q|Press {{button|t}} to begin the duel! Find and attack her real form!|Information}}
'''No. 10''' appears at [[Isla de Muerta: Moonlight Nook]] during the second visit. Sora must defeat the real Mushroom in 55 seconds as it shuffles itself amongst four clones. The only notable strategy is to stand back to where all clones are visible and then repeatedly pause the game to make it easier to keep track of the real one, and then use Final Form to deal as many hits as possible to the real form; after each consecutive correct guess, more time will be added before it shuffles itself again, but after each incorrect guess, the time to hit it will restart.

When attacking it, it is recommended to equip Hero's Crest to double up on Air Combo Boost, and to remove Aerial Finish and Magnet Burst so that the Finishing Plus abilities allow Sora to consecutively chain his faster standard air combo finishers, albeit there is a chance that depending on positioning and angling, that one of them may whiff. The damage will be enough to cut down on enough time to possibly S rank the encounter in at least 3 proper guesses, depending on how much raw power Sora possesses at his current level.

Finding the real one amongst fakes references [[Luxord]]'s boss battle and the shuffling of cards.

The fighting style of No. 10 is identical to that of the [[Black Ballade]] in ''[[Kingdom Hearts Final Mix]]'', where hitting the wrong one would result in Sora taking damage.

Mysteriously, this mushroom in the localized script is referred to as a female for the information prompt, despite the journal entry using a neutral pronoun.
{{-}}

===No. 11===
{{Mushroom
|name=No. 11
|SA=00'15"00 or lower|SB=00'15"00 or lower
|AA=00'15"01 - 00'17"00|AB=00'15"01 - 00'16"00
|BA=00'17"01 - 00'19"00|BB=00'16"01 - 00'18"00
|CA=00'19"01 - 00'22"00|CB=00'18"01 - 00'20"00
|DA=00'22"01 - 00'25"00|DB=00'20"01 - 00'23"00
|EA=00'25"01 - 00'30"00|EB=00'23"01 - 00'27"00
}}
{{Q|Press {{button|t}} to begin the duel! Keep attacking until the number counts down to 0!|Information}}
'''No. 11''' appears at the {{c|Waterway|tr}}. Sora must deplete the hit counter above its head in a certain amount of seconds (19 at minimum for the journal entry), starting out at 99 total hits required. The best way to defeat it is by using Wisdom Form and equipping as much Finishing Pluses as possible to take advantage of its burst-fire combo finisher. Sora can also use Wisdom Form combined with Berserk Charge, making sure to empty the MP Gauge immediately before starting the battle in order to use Berserk as soon as possible. Alternatively Sora can equip as much [[Negative Combo]]s as possible and pelt the mushroom with only Wisdom Shot combo finishers.

However, it's apparent that the mushroom will periodically jump about as it moves around, which will likely mess up Sora's shots even if he's locked-on as some of the Wisdom Shots may end up curving below or away during any of the mushroom's jump arcs. This can mainly occur if Sora is within a close-enough range as it jumps towards him or jumps towards the side, but not when jumping away. Sora must also not move too far back as the Wisdom Shots have limited range and will dissipate before contacting the target; the key is to keep a proper distance so Sora can land as much shots as possible within the time frame if aiming for an S rank and being able to predict its jump path to land the maximum amount of shots by moving Sora around properly.

It's possible though, to have enough MP leftover and to revert back just in time to immediately execute Trinity Limit to stop the timer to also deal the final amount of hits, but this requires fast reflexes and pause scumming; even then there's a chance the final Trinity Limit hit might not rack up any extra hits at all while Donald and Goofy's commands do not reduce the mushroom's counter whatsoever (only Sora's command does).

The hit counter resembles the one [[Marluxia]] uses against Sora in his Absent Silhouette battle, and the mushroom's appearance within the Timeless River in general likely alludes to Marluxia's role in tampering with Sora's past memories in ''[[Kingdom Hearts Chain of Memories]]''.
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===No. 12===
{{Mushroom
|name=No. 12
|SA=50|SB=50
|AA=44 - 49|AB=47 - 49
|BA=40 - 43|BB=42 - 46
|CA=30 - 39|CB=35 - 41
|DA=25 - 29|DB=27 - 34
|EA=20 - 24|EB=22 - 26
}}
{{Q|Press {{button|t}} to begin the duel! Defeat the enemies that appear before you!|Information}}
'''No. 12''' appears at [[The Old Mansion]]. Sora must defeat 40 or more clones before time runs out. However, unlike No. 6, they appear by themselves in rapid succession. A good way to defeat No. 12 is to use Wisdom Form; normal attacks or finisher strings are both capable of completing the challenge, either using Berserk Charge or the Fatal Crest, or un-equipping all Combo Plus abilities, equipping Finishing Plus and Negative Combo, and using Fenrir to fire continuous finisher bursts. Proper control of the camera helps greatly in completing this challenge, as the clones can appear among and on top of the pillars on the mansion grounds where they may not seen easily and Wisdom Form's shots will not auto-aim toward them. Avoid locking onto the clones and sweep the camera around to keep more of the area in view and see where the clones are appearing, then move in to fire at them.

Though if you prefer to lock-on to each clone, it's wise to ensure that Berserk Charge is equipped. Furthermore, whether you decide to lock-on or not, you can choose to instead deplete your MP through usage of chaining Magnet/Magnega with both Magic Lock-On and as many Finishing Plus Abilities as possible equipped. This way, you can easily target any nearby clones while also depleting MP to reach MP Charge; Finishing Plus ensures the Magnet spells can properly chain into each other without much delay. DO NOT USE Thunder/Thundaga since the clones are immune to it.

The clones' rapid appearance reference [[Larxene]]'s Absent Silhouette battle.
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===No. 13===
'''No. 13''' appears at [[The Great Maw]], where the [[Battle of 1000 Heartless]] took place. After defeating Xemnas, each time Sora enters the Great Maw, the other twelve Mushrooms will appear before him. A second later, all Mushrooms whose challenges he has yet to complete will vanish, while those remaining will jump for joy. If all twelve have been appeased, a beam of light will appear, and approaching it will give the Reaction Command "Look Up". Doing so will reveal No. 13, who descends from above directly before Sora. After the cutscene, the Reaction Command "Ready, Go!" appears. Activating the command will result in No. 13 giving Sora the Winner's Proof Keyblade and the Proof of Peace. After that, the thirteen mushrooms ascend into the sky together; while the other twelve are still available to be challenged, No. 13 will never appear again.

Its non-hostility compared to the other twelve references [[Roxas]] as being unusual compared to the rest of the Organization. Also, the way it appears is a possible reference to Roxas's element of light.
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==Video==
{| class="video"
! Mushroom XIII – ''Kingdom Hearts II Final Mix''
|-
| {{#widget:YouTube|id=pTZGZA-vqSQ|width=320|height=240}}
|}

==Notes and references==
{{reflist}}

{{FM2}}
{{HeartlessBossDirectory}}