Hedorah (ヘドラ Hedora) is an alien pollution kaiju created by Toho that first faced Godzilla in the 1971 Godzilla film, Godzilla vs Hedorah.
Hedorah, an alien from the Dark Gas Nebula, landed on Earth 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 Mount Fuji, in which Hedorah achieved his final form, a humanoid, walking 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 monster. Their plan was that, since Hedorah was merely sludge, they would use the electrodes to dry him 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 ray to re-energize the electrodes. Badly dehydrated by their electricity, Hedorah tried to escape, but thanks to Godzilla's new-found power of flight, was returned to the electrodes and was dried out completely. Sensing that there was still wet sludge within Hedorah's dried out husk, Godzilla proceeded to rip out Hedorah's innards, then used the electrodes to fry them. Godzilla had finally killed Hedorah, but not without a price; he had lost one of his eyes, and his right hand was burnt down to the bone.
Powers and Stats
Tier: Unknown | At least 7-A, likely 6-C to 6-B | At least 7-A, likely 6-C to 6-B | At least 7-A, likely 6-C to 6-B
Name: Hedorah, the Smog Monster, Hedorha, Hedrah
Classification: Kaiju, Alien from the Dark Gas Nebula that feeds on pollution
Powers and Abilities: Superhuman Strength, Superhuman Speed, Superhuman Durability, and Superhuman Stamina, Logia Intangibility with water and pollution, Flight, Regeneration, Reactive Evolution, Able to change back and forth between Flying form and Final form, Able to combine with other Hedorah's and change form and size, Hedrium eye rays that create toxic smoke on impact, Hedrium Missiles, Spreads sulfuric acid mist while flying in Flying form, Able to absorb pollution to increase his size and power, Body has a corrosive effect on anything it touches, Increases in toxicity as he absorbs more pollution, Immunity to radiation, Able to leap far distances, Asexual Reproduction, Able to swim in water form
Attack Potency: Unknown | Unknown | Unknown | At least Mountain level+, likely Island level to Country level (Defeated Showa Godzilla many times with little effort, said by many sources to be one of Godzilla's most powerful opponents in the Showa series, had to be weakened greatly for Godzilla to kill him)
Speed: Unknown swimming speed, Unknown reactions | At least Superhuman+, likely Subsonic on foot, Unknown flight speed | Supersonic flight speed, Unknown reactions | At least Superhuman+, likely Subsonic on foot, Unknown reactions
Lifting Strength: Unknown | Unknown | Unknown | Class M (Weighs 48,000 metric tons, fought with and pushed around and knocked down Godzilla)
Striking Strength: Unknown | Unknown | Unknown | At least Mountain Class, likely Island Class to Country Class
Durability: Unknown | At least Mountain level+, likely Island level to Country level (Survived being attacked by Godzilla, tanked several of his Atomic Rays) | At least Mountain level+, likely Island level to Country level (Survived being knocked out of mid-flight onto the ground by Godzilla) | At least Mountain level+, likely Island level to Country level (Withstood many of Godzilla's Atomic Rays without any harm, physical damage to the body of Hedorah resulted in Godzilla's regeneration to be halted and dissolving down him to the bone), Partial intangibility and Regeneration makes him difficult to kill.
Stamina: Unknown | Unknown | Unknown | High
Range: Several meters when leaping | Several hundred meters when leaping | At least several hundred meters, possibly several kilometers via flight | Several dozen meters by virtue of sheer size, several hundred meters with Hedrium eye rays
Intelligence: Unknown | Unknown | Unknown | Unknown
Weaknesses: Will die from dehydration if left away from water too long or if exposed to a large amount of electricity
Key: Water form | Land form | Flying form | Final form
Note: This page only covers the Hedorah incarnation from the Showa era continuity in 1971's Godzilla vs. Hedorah