I noticed a new detail when watching the youtube clips uploaded after the first digital releases that makes Ghidorah seem even more unstoppably invincible. Take note about 30 seconds into the clip. After Ghidorah shoots his lightning from his wings starts posing like the devil amidst the backdrop of a burning city and the wreckage of the American military, he's regenerating all the injuries Godzilla and the armed forces dealt to his wings while showing them off. Godzilla is out of allies, he's exhausted and in serious pain from being forcefed all the voltage of the entirety of every power grid that interacts with Boston's and unable to go for another round and everything he, mothra, and humanity did to Ghidorah is undone in about five seconds of t-posing to assert dominance and he's not even a little tired.
Godzilla, Mothra, and the military had accomplished literally nothing and Ghidorah made it perfectly clear victory through conventional means was never actually in the cards to begin with the second he rebalanced the teams with a bit of juice and a stretch of his wings. They couldn't even make the king of terror bleed and after all the heroes had exhausted every option available to them, Ghidorah just healed up and made it clear he could keep doing this forever until everyone opposing him was dead. Nothing they could do could do any lasting harm to him and his stamina seems to be entirely without limit. Very little could hurt him and anything that could would just be regenerated in seconds.
Only the final result of the combined sacrifices of Serizawa, Mothra, and Emma (notably three people all giving their lives for Godzilla's sake in quick succession) were able to do this damn climate change dragon any lasting damage.
No wonder why Godzilla drops literally everything to try stopping him every second Ghidorah's awake. Ghidorah literally cannot lose if you give him any recovery time at all; even actual seconds. It also makes Godzilla incredibly brave for doing so because without his fire mode power up there is no way for Godzilla or any other monsterverse Kaiju to ever win a fight with Ghidorah outside of the water barring special circumstances. Inevitably Ghidorah's infinite stamina, complete lack of need for any internal organs meaning that he can't actually die in any conventional way barring incineration, and near instantaneous regeneration will simply wear down his enemy and he'll either kill them or make them bow. And if they can't fly well, they get a free ride with the Golden Stratosphere airline with an express return ticket to the ground.
Makes you wonder what the fuck kind of hell planet Ghidorah is actually from. If he's at all representative of his homeworld's biology then macroscopic organisms from his homeworld have no actual differentiated internal organs due to all such processes being handled by evenly distributed structures, they don't use oxygen in their biochemistry at all, they can just grow more biomass from nothing, are able to drain most forms of energy through their mouths, and at least some of them have more than one head with separate personalities for each of them.
Ghidorah's biology is approaching tyranid levels of weird here.
