From Wikipedia, the free encyclopedia
Jump to: navigation, search
Godzilla film series character
Hedorah land 1971.jpg
First appearance Godzilla vs. Hedorah (1971)
Last appearance Godzilla: Final Wars (2004)
Created by Yoshimitsu Banno
Portrayed by Shōwa series
Kenpachiro Satsuma
Millennium series
Kazuhiro Yoshida
Aliases The Smog Monster
Forms Aquatic Form
Land Form
Flying Form
Final Form

Hedorah (ヘドラ Hedora?), also known as the Smog Monster, is a kaiju who first appeared in Toho's 1971 film Godzilla vs. Hedorah.[1] The monster was named for Hedoro (へどろ?), the Japanese word for sludge, slime, vomit or chemical ooze. He is the main antagonist of the film.[2]


Hedorah is an extraterrestrial kaiju formed from pollution that could feed on pollution. Falling to Earth as a cloud of spores, Hedorah hatched into millions of microscopic tadpole-like organisms which began to feed upon the toxins with which mankind had poisoned its air and water. As they increased in number and power, they began to merge into a giant monster of living sludge capable of reducing the entire planet to an uninhabitable wasteland.

Hedorah's transformations and composite physiology are thought to be the inspiration for the Heisei monster Destoroyah. Surprisingly, Hedorah has become one of the most famous Godzilla monsters.

At the time of his creation, he was without a doubt, alongside King Ghidorah, Godzilla's most challenging enemy. In the course of their fights, the King of the Monsters was continuously injured and found it very difficult to defeat him. Hedorah, with King Ghidorah, Mechagodzilla, SpaceGodzilla and Destoroyah, are considered to be some of Godzilla's most powerful enemies. Although in Final Wars, Godzilla defeated Hedorah with ease, he is still considered to be a powerful enemy of Godzilla simply because he was at the wrong place at the wrong time.

Hedorah in the Showa series was between 0.1 millimeters and 20 meters (65 feet) long in his Water Form, 30 meters (98 feet) tall in his Land Form, 40 meters (131 feet) long in his Flying Form, and 60 meters (196 feet) tall and weighed 48,000 metric tons (52,910 short tons) in his Final Form. Hedorah in his Flying Form could fly up to speeds of Mach 1.

Hedorah in Final Wars was 120 meters (393 feet) tall and weighed 70,000 metric tons (77,161 short tons).

Powers and abilities[edit]

Hedorah possesses many special abilities. As a composite kaiju formed from millions of smaller organisms, Hedorah is capable of assuming a number of different shapes to suit the particular situation. For traveling through water, Hedorah transformed into a giant tadpole monster similar to the base organism that composed it. For traveling on land, Hedorah became a four-legged pile of slime resembling a gigantic salamander and it also could assume a saucer-like shape which granted it flight capabilities. After being driven back by Godzilla several times, Hedorah assumed a gigantic humanoid shape that even dwarfed the king of the monsters. Thanks to the protean nature of its body, ordinary weapons passed right through Hedorah. Even Godzilla's atomic ray was unable to inflict any lasting harm. Finally, since Hedorah fed on pollution, so long as a piece of it remained alive then Hedorah could retreat to absorb more pollution in order to regenerate itself.

Hedorah's primary form of attack was by spurting globs of its own corrosive sludge at its opponent. The slime was so acidic it was even capable of scarring Godzilla's usually impenetrable hide. It was also able to project crimson energy beams from its eyes while its flying form created a byproduct of sulphuric acid mist that melted any living creature that came in contact with it down to its skeletal frame just like the Oxygen Destroyer.

Hedorah's only known weakness is that he will die if the sludge in his body dries up. If Hedorah is electrocuted his body will dry up.



Hedorah was an alien life form that landed on Earth and began feeding on pollution. Hedorah's actions soon gained the attention of Godzilla, who attacked the Smog Monster as he was feeding off of a smokestack. At the time, Hedorah was still in a young form, and was easily trounced by Godzilla. The two creatures had a series of battles across Japan, and Hedorah continued to grow bigger and stronger, and achieved a flying saucer-like form, allowing him to fly and spread sulfuric acid mist across Japan while destroying many factories. Hedorah and Godzilla had a final showdown near Mt. Fuji, in which Hedorah achieved his final form, a bipedal, humanoid pile of sludge. Thanks to his acidic, poisonous body, as well as his lethal eye bolts, Hedorah very nearly put an end to Godzilla in their struggle. However, mankind had built a pair of gigantic electrodes near the warring kaiju with the intention of creating a superheated zone that would dry Hedorah out. During a period of the fight where Godzilla was knocked out, Hedorah was lured between the electrodes. Unfortunately, a fuse was blown, and the electrodes were useless.

Thankfully, Godzilla quickly came to the rescue again, using his breath to re-energize the electrodes. Badly dehydrated by their electricity, Hedorah tried to escape when in the film's most famous moment, Godzilla used his atomic ray as a jet to propel himself through the air after the sludge monster whereupon he returned Hedorah to the electrodes to be dried out completely. Sensing still wet sludge within Hedorah's husk, Godzilla proceeded to rip out Hedorah's innards and then used the electrodes to finally slay the last remnants of the polluted monster.


In Godzilla: Final Wars, Hedorah, along with Ebirah, is seen being blasted out of Tokyo Harbor by Godzilla and crashing into a building, with one of Ebirah's claws piercing one of Hedorah's eyes. The Smog Monster and the Sea Monster are then destroyed by a blast of Godzilla's atomic ray. No reason is given for Hedorah's destruction, other than simply being in the wrong place at the wrong time.




  • Godzilla Island (1997-1998) - The show featured Hedorah in several episodes, along with a related, but otherwise original character named Neo-Heodrah.

Video games[edit]




  1. ^ "Top 10 Godzilla Villains". YouTube. Retrieved 2015-09-26. 
  2. ^ Robertson, Josh (2014-05-18). "Hedorah - The 15 Most Badass Kaiju Monsters of All Time". Complex. Retrieved 2015-03-10.