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Catastrochorus from the Ultimania

Japanese カラミティコーラス
Rōmaji Karamiti Kōrasu
Translation Calamity Chorus

Type Emblem Heartless
Game Kingdom Hearts III
Themes Header.png

KHIII tracks
Battle theme - Vim and Vigor

Kingdom Hearts III
What's worse than a Heartless? Try three of them, fused into one weird body.

Stomping feet and gnashing teeth, an active volcano spewing fire, plus a thundercloud tail raining lightning bolts left and right added up to one bad day in San Fransokyo.
Location HP Strength Defense EXP
San Fransokyo 2280 52 26 0
Keyblade Graveyard
(Battlegate 13)
3288 73 37 0
Physical Fire Blizzard Thunder Water
×1.0 ×1.0[1]/×0[2] ×1.0 ×1.0[3]/×0[4] ×1.0[5]/×1.5[2]/×0.7[4]
Aero Dark Neutral Rapid-fire
×1.0[3]/×1.5[4] ×1.0 ×1.0 ×0.5
Freeze Electrify Stun Hunny
40[6]/—[7] ×0.5

Sora: Firaga (San Fransokyo)
San Fransokyo, Keyblade Graveyard

Catastrochorus is an Emblem Heartless boss in Kingdom Hearts III. It is the second boss of San Fransokyo. It is also fought in Battlegate 13 in the Keyblade Graveyard.


Kingdom Hearts III[edit]

While Sora, Donald, and Goofy help the newly upgraded Big Hero 6 take out Heartless attacking San Fansokyo, a Catastrochorus jumps into the middle of the street. As the lesser Heartless are still attacking the city, Sora, Donald, Goofy and Baymax destroy the Catastrochorus, while Big Hero 6 takes care of the other Heartless.


The Catastrochorus is a large Heartless resembling a tyrannosaurus rex. It is largely colored brown with a grey and black exterior across its head and back, with yellow zig-zagged stripes separating the two. It has a large dino-like head with a sharp pointed horn, a jagged mouth with a lava covered interior, curved yellow eyes on each side of its head, and two lava filled outlets as its 'ears'. More outlets extrude out from its back and hips, with the largest in the middle of its back resembling a volcano. It has two proportionally small arms and two giant feet, each containing grey blocky claws. It has a blue jar-like tail, upon which is its Heartless emblem. Hiding inside the tail is a black cartoonish figure. While hiding, only the top of its head and its two long antennas are visible from the tail. When it comes out of hiding, the head becomes covered by a large thundercloud afro.

Its journal entry describes it as three Heartless "fused into one weird body" - the T-rex, volcano on the back, and thundercloud "wizard" in the tail. The three typically take turns controlling the body but can also be active at the same time. When they are not active, the t-rex will slump over, the volcano head shrinks into the back, and the wizard hides in the tail and loses its afro.


By far the easiest method to defeat the Catastrochorus is through the use of the Sea Spectacle Link summon, which will deal massive damage to the Heartless due to both its weakness to Water damage and its large size causing nearly all the projectiles from the Link to hit the target. Just one effective usage of the Link will be enough to reduce the Heartless's HP to 1 before it can begin its second phase in San Fransokyo, though it cannot be defeated until the second phase has begun.

However, if Sea Spectacle is not available due to The Caribbean not being visited yet or the usage of the No Links PRO Code, then it is best to play defensively and wait for the Catastrochorus to begin one of its attacks before counterattacking. When casting magic, attempt to use Water magic on its Volcano for extra damage. Be careful when using physical combos against the Volcano however, as the Catastrochorus has a couple attacks to use to defend it. When it gains its armor, consider using a Shotlock to safely deplete its armor from a distance.

During the boss battle in San Fransokyo, the Catastrochorus will jump to one of the buildings and switch to its tail and lightning attacks. Heartless will intercept Sora on the way to the Catastrochorus, so be prepared to dodge projectiles while climbing the buildings, and watch for stray Heartless while attacking the Catastrochorus. Utilize Air Slide to dodge its lightning attacks while getting hits in, as this portion of the fight is most effectively fought in the air.

Technique Element Power Block? Repel LV
Rush Bite (突進かみつき
Tosshin Kamitsuki
Physical 1.0 per hit 2
Runs forward while biting continuously.
Rush Horn Attack (突進ツノ攻撃
Tosshin Tsuno Kōgeki
(charge) Physical 0.5 per hit 2

(upward swing) Physical 1.5 △ (Risk Dodge) 3
Lowers its head and charges with its horn facing forward, then swings its horn upward.
Fire Breath (火炎ブレス
Kaen Buresu
Fire 0.5 per hit
Breathes fire from its mouth, with a 100% chance to inflict the Burning status effect for 5 seconds.
Rampage (暴れまわり
Physical 1.0 per hit 2
Runs around indiscriminately, crashing into anything in its way.
Roar (おたけび
Neutral 1.0
Roars, generating a shock wave around itself.
Radiation (放熱
Fire Variable
The volcano heats up and damages opponents on it. Has a 100% chance of inflicting the Burn status effect for 2 seconds.
Eruption (噴火
Fire 0.5 per hit
The volcano on its back repeatedly erupts, scattering many burning rocks around (the rocks fly in a curved arc).
Magma Attack (マグマ攻撃
Maguma Kōgeki
Fire 1.5
Shoots magma straight up from its volcano.
Thunderbolt (落雷
Thunder 1.0 per hit
Repeatedly rains down lightning directly overhead on an opponent. Has a 100% chance of inflicting the Electrify status effect for 10 seconds.
Tail Slam (シッポたたきつけ
Shippo Tatakitsuke
Thunder 1.0
Strikes the ground with its tail, discharging electricity around the impact point.
Tail Flourish (シッポ振りまわし
Shippo Furimawashi
Physical 1.0 2
Swings its tail and strikes whatever is in its way.
Guard/Block: △ = Can be blocked; O = Can be blocked and interrupted (melee) or deflected back (projectile); X = Cannot be blocked.


Catastrochorus – Kingdom Hearts III

Notes and references[edit]

  1. ^ Head and tail
  2. ^ a b Volcano
  3. ^ a b Head and volcano
  4. ^ a b c Tail
  5. ^ Head
  6. ^ Normal mode
  7. ^ Armored mode