King Ghidorah's powers and abilities
Alpha call
When Ghidorah became the alpha, he let out an extremely loud and powerful call that could be heard by the other Titans all around the world. Upon hearing the said call, the Titans would immediately come to Ghidorah's aid, assisting him in destroying the Earth, minus Kong, who chose to ignore the call, not wanting anything to do with it. Additionally, his call did not affect Godzilla, who was a rival alpha, or Mothra, who was loyal only to Godzilla.
Bio-electrical nature
Ghidorah had electro-receptor molecular biology, and his skin was covered with traces of gold that acted as a conductor that carried bioelectrical currents throughout his body. Besides his Gravity Beams and Meteorokinesis (see below), this seemingly enabled him to draw his storm's lightning to himself as a living conductor, as he seemed to do when fighting Godzilla in Antarctica.
Immediately after absorbing electricity directly from a city transformer, Ghidorah blasted lightning bolts from the bladed tips of his wings, disabling numerous aircraft in the surrounding skies and injuring Godzilla.
Consciousness transferal
The skull of Ghidorah's decapitated, decomposing left head retained not only Ghidorah's telepathic abilities, but also at the least some marked vestiges of Ghidorah's consciousnesses and murderous personality traits, and it transferred them into Mechagodzilla via its telepathic link to the Mecha; causing the machine to operate independently of a human pilot and exhibit a Ghidorah-like murderous personality.
Durability
Ghidorah's golden scales made him highly impervious to any form of weaponry. He was also able to withstand a full-force charge from both Rodan and Godzilla. Even a radiation-overloaded Godzilla's atomic breath couldn't cause any noticeable damage to Ghidorah, merely forcing him backward, though it did burn him.
Even after the destruction of Ghidorah's entire body, the middle head survived and remained completely conscious (possibly due to Ghidorah's alien biology), and it was only destroyed by Godzilla's atomic ray firing up through the head's severed neck to atomize it. Ghidorah's severed left head, by comparison, appeared to be dead and rotting by the time it was dredged up.
Energy drain
Ghidorah could drain energy and electricity directly into himself by biting down on power sources. He gained a catastrophically-immense burst of electrical power by biting down on a live power station in Boston; and he was also able to slowly drain and siphon Godzilla's excess radiation by biting down on the latter, an act which caused the orange-colored excess energy to visibly flow down Ghidorah's heads and necks from Godzilla.
Hibernation
Able to survive millions of years in solid ice.
Flight
Ghidorah's massive and powerful wings allowed him to fly with great speed at 500 knots (575.39 mph) over long distances, and he only needed to pump them downwards to get airborne off the ground. This allowed him to easily chase down Emma Russell and attempt to attack the USS Argo.
Forked tongues
Similar to monitor lizards and snakes, Ghidorah possesses three forked tongues in each of his three mouths which he can use to smell using the forked tips and allow him to sense Godzilla's arrival.
Gravity beams
Ghidorah could shoot yellow gravity beams (concentrated, lightning-like beams of electrical energy) from each of his three mouths. Much like how Godzilla's dorsal plates glow whenever he is about to release his atomic breath, Ghidorah's necks, throats, and sometimes his eyes glowed before he fired his gravity beams. The beams were extremely powerful, as they could easily obliterate buildings, seemingly caused humans to instantly combust to ashes, singed Godzilla's scales and knocked him over, and incinerated a weakened Mothra within seconds during their battle in Boston, though they did no lasting damage to the former. They were also able to generate a great amount of static electricity that shorted out the circuits of all nearby electronics, as happened in Antarctica.
Hurricane winds
Ghidorah had hyper-tensile muscle tendons in his wings that were capable of generating hurricane-force winds while in flight. This was most notably seen when rhythmic bursts of wind seeming to indicate his wing-beats caused a flag in Boston to fly and fall ahead of his (and his main storm's) arrival.
Intelligence
Cranial scans indicate each of Ghidorah's heads possessed different levels of cognitive function and independent thought. The middle head was the most intelligent; acting as the leader and being quicker-acting, more resourceful, as well as more goal-oriented than the other two. Meanwhile, the right head displayed a combative spatial awareness when the other two were incapacitated in combat, and the left head was an observant sentry. Ghidorah is also very intelligent overall, capable of tactical fighting and improvization.
Meteorokinesis
Ghidorah could conduct electrical currents, making water vapor heat up to extreme levels and creating localized storm systems, as well as otherworldly tempests of thunder and yellow lightning. As a result, Ghidorah was effectively constantly wrapped in or accompanied by lightning-filled, otherworldly typhoon, which seemed to worsen the longer Ghidorah was active after escaping the ice - starting as anomalous winds and near-constant flashes of thunder and lightning in Antarctica, afterward progressing to the equivalent of a tropical storm the size of Central America, and subsequently to a Category 6 hurricane when Ghidorah invaded Washington DC. Ghidorah's cyclone-like storms also produced tornadoes or water spouts in his immediate surroundings. Ghidorah's storms seemed to be somewhat radiation-influenced, as a radiation-supercharged Godzilla's presence in Boston caused the lightning to turn blue like the latter's bioluminescence in his immediate vicinity.
When Ghidorah becomes the Titans' new alpha and begins using them to actively destroy the Earth, his main hurricane begins producing hundreds of offshoot super-cells, squall lines, tornadoes and thunderstorms which rapidly spread over the planet[29] - Mark Russell notes that if these storms continue pelting the planet for even a matter of weeks, the long-term dramatic decrease in sunlight alone will cause plant and animal food chains around the planet to collapse and create mass extinction, never mind the mass flooding, mass over-saturation of reefs and mass displacement of freshwater that the storms will also cause.
When Ghidorah's body apart from its middle head was obliterated by Godzilla's thermonuclear pulses, his hurricane immediately dissipated - whether this was due to the destruction of Ghidorah's body or the thermonuclear pulses' effects is uncertain. However, at least one of the superstorms that Ghidorah's effects on Earth's atmosphere generated continued to rage in a fixed location above the Pacific Ocean years after his death.
Oxygen independency
Due to being an extraterrestrial alien, Ghidorah did not require oxygen to survive, which made him completely immune to the Oxygen Destroyer. He appeared to produce some fogged exhalation in Antarctica however, though notably not as thick as Godzilla's breaths.
Rattling
The spikes on Ghidorah's tails could be used to create a rattling sound as a form of intimidation, similar to a rattlesnake.
Regeneration
Using the radiation from Rodan's volcano, Ghidorah was able to regenerate the head that was decapitated by Godzilla almost instantaneously. The process was somewhat brutal, requiring that the severed head's tongue regrow first, followed by the skull (producing a bright-golden membrane, which the middle head seems to tear away from the regenerating left head prematurely), then muscle, skin, and scales. During the battle in Boston, after absorbing the Boston power grid's energy and blasting the military's airborne vehicles out of the sky, Ghidorah was able to regenerate holes in his wing membranes within seconds.
Serpentine necks
Ghidorah can use his three serpentine necks to wrap around and tighten Godzilla in combat, possibly to constrict him to death similar to constrictor snakes' method of subduing prey.
Sharp teeth
Each of Ghidorah's three heads have sharp teeth which grant him a vicious bite, as he was able to bite into Godzilla's skin during both their battles in Antarctica and Boston.
Speed and agility
Each of Ghidorah's heads was very nimble and quick; able to lash out and quickly strike their intended targets like snakes, and also using their flexible necks and numbers to dodge attacks such as Godzilla's atomic ray. When flying, Ghidorah's top speed could reach up to 550 knots - however, unlike Rodan and Mothra, he appeared to be a somewhat heavy flyer without their aerial agility, making up for this with strength, speed, ferocity, as well as his electrical and meteorokinetic abilities.
Stamina
Ghidorah showed no signs of tiring or resting in the time window between his awakening and his death (spanning at least one sunset and sunrise), despite flying from Antarctica to Mexico and finally to North America during that time, and despite engaging in multiple battles with other Titans. After fighting Godzilla for a certain amount of time in Boston, Ghidorah didn't show any signs of exhaustion while Godzilla (who was dangerously unstable due to being overloaded by a nuclear warhead's energy) had been begun to breathe heavily and slow down.
Strength and combat
Ghidorah's intimidation style was very similar to a king cobra. Much like cobras that raise their heads and spread their necks, Ghidorah's heads arched their necks and spread his wings to make him appear twice as large as Godzilla. His fighting style was similar to that of a snake, with his heads quickly lashing out and biting onto opponents.
Ghidorah was a tactical combatant. Ghidorah's jaws and his gravity beams were his primary and preferred weapons, with all three heads tending to work together (and often firing their gravity beams in unison) to combat Ghidorah's foe. He is much stronger than most other Titans, with only Godzilla rivaling him in physical strength. Though Ghidorah initially mainly fought Godzilla with bites, his heads' ability to combine teamwork and ingenuity was disturbingly shown when the side-heads held Rodan pinned by either wing with their jaws, whilst the middle head blasted him at close-range with its gravity beam. The fact Ghidorah's heads could act independently of each other was also an advantage, limiting his opponent's ability to keep track of all three heads' actions. During the Boston battle, Ghidorah not only relied on his jaws but also used his wings to dislodge Godzilla from the ground while biting him. After consuming Boston's power supply to greatly enhance his strength, Ghidorah utilized the combined power of his wings, legs, and tails to lift Godzilla, a 99,634-ton Titan, seemingly above the Earth's troposphere. He then proceeded to drop Godzilla, resulting in severe weakening of the mighty creature.
Ghidorah has a defensive tactic where he uses his wings as shields against projectiles, like man-made missiles. He achieves this by tucking his wings over his body and heads, providing protection against incoming attacks.
Telepathy
According to Bernie Hayes, due to the fact the immense length of Ghidorah's necks would normally interfere with how quickly the beast could receive and interpret sensory information, Ghidorah ended up evolving telepathy so that his heads could communicate with each other instantaneously, thus bypassing any information lag he might experience. Ghidorah's bone matter in his severed head's skull retained this telepathy even beyond the head's death by decapitation, which was harnessed by Apex Cybernetics to control Mechagodzilla. The skull even appeared to produce echoes of Ghidorah's vocalizations without any vocal chords, which is what drew Madison Russell's attention to the Skull Room.
Twin tails
Similar to his previous versions, Ghidorah possesses two tails with retractable spikes on the ends, which can serve as formidable weapons. However, it appears that Ghidorah does not specifically utilize these tails as offensive weapons in combat. Instead, during his battle with Godzilla in Boston, Ghidorah is observed using his tails as prehensile limbs to restrain Godzilla while lifting him into the sky.
