Editing Hedorah

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'''Hedorah''' (ヘドラ, ''Hedora''), also known as the '''Smog Monster''', is a fictional [[kaiju]] character in [[Toho]]'s [[Godzilla]] franchise. An alien pollution organism that arrived on Earth via comet, Hedorah is one of Godzilla's most psychologically disturbing and thematically charged adversaries — a living embodiment of industrial pollution and environmental destruction. He first appeared in the 1971 [[Shōwa era (1954–1975)|Shōwa-era]] film ''[[Godzilla vs. Hedorah (Movie)|Godzilla vs. Hedorah]]'', directed by Yoshimitsu Banno.

Hedorah's name is derived from ''hedoro'' (ヘドロ), the Japanese word for mud, sludge, or slime.

=== Origin ===
Hedorah is an extraterrestrial microorganism that traveled to Earth from deep space, arriving in a comet or meteor. Upon making contact with Earth's heavily polluted oceans and atmosphere, the alien began feeding on industrial waste, toxic chemicals, and smog, growing rapidly in both mass and intelligence. Unlike most kaiju that are mutations of existing Earth creatures, Hedorah is a genuinely alien organism — one that finds humanity's pollution not harmful but nourishing.

=== Design and Forms ===
Hedorah is a uniquely amorphous kaiju, capable of shifting between four distinct forms as it grows and evolves throughout ''Godzilla vs. Hedorah'':

* '''Aquatic Stage''' — A tadpole-like creature that swims through polluted coastal waters, emerging from the sea to attack ships and shorelines.
* '''Land Stage''' — A crawling, salamander-like mass of toxic sludge that moves across the landscape, leaving trails of acid and killing everything it touches.
* '''Flying Stage''' — A flattened, saucer-like form that allows Hedorah to fly at high speed, dispersing sulfuric acid mist across wide areas that reduces living creatures to bare skeletons.
* '''Final Stage''' — A towering, vaguely humanoid form that surpasses even Godzilla in sheer size, with red compound eyes and a body composed of densely compacted toxic sludge.

In ''[[Godzilla: Final Wars (Movie)|Godzilla: Final Wars]]'' (2004), Hedorah appears with a redesigned, more compact humanoid silhouette with oily gray surfaces, reddish pipes across the body, and large glowing red eyes.

=== Abilities ===
Hedorah is one of the most lethally equipped kaiju in the Godzilla franchise. Its primary attacks include:
* Expelling streams and globs of corrosive acidic sludge capable of burning through Godzilla's armored hide — notably making Hedorah the first kaiju to visibly penetrate Godzilla's skin
* Projecting crimson energy beams from its eyes
* Releasing toxic sulfuric acid mist from its Flying Stage form that instantly reduces organic life to skeletons
* Regenerating and reconstituting itself from severed pieces, as each fragment remains independently alive
* Absorbing and incorporating additional pollution to grow larger and stronger mid-battle

Hedorah's amorphous biology makes it nearly immune to conventional physical attacks and resistant to heat. Its primary weakness is rapid dehydration.

=== Role in ''Godzilla vs. Hedorah'' (1971) ===
Hedorah first appears as a small creature in the polluted waters off the Japanese coast, where marine biologist Dr. Yano studies it. His young son Ken becomes fascinated with and emotionally attached to the kaiju. As Japan's industrial pollution continues unabated, Hedorah feeds and grows through its successive forms, each more destructive than the last. Godzilla engages Hedorah in a series of increasingly desperate battles, suffering severe injuries including the loss of an eye and a chemical burn down to the bone of his hand.

The military constructs a pair of giant electrodes at the base of Mount Fuji to dehydrate Hedorah. When the electrodes fail during the climactic battle, Godzilla famously uses his atomic breath as jet propulsion to fly through the air in pursuit of the escaping Hedorah — one of the most iconic and controversial moments in the Shōwa series. Godzilla drags Hedorah back to the electrodes and activates them himself, finally killing the Smog Monster by reducing it to dust.

The film is regarded as one of the most politically charged entries in the Godzilla franchise, serving as a pointed environmental allegory about Japan's severe industrial pollution crisis of the late 1960s and early 1970s.

=== Later Appearances ===
Hedorah returned in ''[[Godzilla: Final Wars (Movie)|Godzilla: Final Wars]]'' (2004) in a brief but memorable role, deployed alongside [[Ebirah]] by the Xilien aliens to intercept Godzilla in Tokyo Bay. Godzilla dispatches both monsters quickly with his atomic ray. The character has also appeared in IDW Publishing's ''Godzilla'' comics and various animated media.

=== Film Appearances ===
* [[Godzilla vs. Hedorah (Movie)]] (1971)
* [[Godzilla: Final Wars (Movie)]] (2004)

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