WMG / Monster Hunter

Monster Hunter takes place after the fall of a Highly Advanced Humanity.
If you remember Mi Ru, Gorgmazios, or the Black Flying Unknown Wyvern, they not only look unnatural, their abilities defy nature itself, isn't that a little odd? So, what if these monsters, heck, all of the Elder Dragons, are actually, Artificial Bio Weapons? And the aformatentioned three, were Laboratory Escapees? Need proof? Check the description of Monster Hunter Freedom Unite's Dragon Blood. It says that there's an unknown substance inside it. The Tower which you can fight many of these terrifying monsters, is made of Kushala Daora materials, and they weren't hunted, no. This could have been built even before the creation of Kushala Daoras. And even the weapons reference the Old Civilization. The Aqua Guardian for example, says that it's crafting instructions was in an Ancient Ruin. An Ancient Armory perhaps? Clearly enough this isn't Earth, so it could be safe to say that this is a Lost Colony on a Low Gravity World.
  • Most part of this actually finds support in official, supplementary material. It seems that, indeed, there once was a highly advanced civilization in the setting, and they didn't have the same environmental concerns that current MH society has: they have designed a lot of powerful weapons (most fortress defense systems such as the Dragonator come from them) and killed a lot of dragons in order to create many of their inventions (such as the "Equal Dragon Weapon", a huge Frankenstein-like creature made from the corpses of many dragons). This caused a massive war between this civilization and the Elder Dragons, driving both sides to near extinction. That's when the current society has risen, with a much more sustainable approach to hunting and scientific development.

Monster Hunter takes place in a low gravity world
Hunters seem to be capable of falling from great hights without getting hurt, animals can grow to immense sizes, especially invertebrates whose exoeskeleton can hold their weight with ease, compared to their Earth counterparts. The low gravity could also make it possible for large creatures to move under sand, and for hunters to carry absurdly large weapons—they simply feel lighter.
  • If that's the case, it could be a Lost Colony on a Death World. And somehow the descendants of the colonists haven't lost their Heavy Worlder muscles yet. Which would also explain how a Bronze Age civilization even has guns.
  • If you go to Area 9 of the Volcano in Tri, you can see a planet/moon that looks far too large to be the moon we all know. It's also a different colour (kind of purple), although the volcano might have something to do with that. So perhaps the MH series is set on a different world. It may just be a severe case of moon illusion (somehow), but the colour and size don't really seem to fit those conditions exactly.

Odd volcanic behavior
The volcanic areas present on the game seem to be strangely static, showing little change despite their active magma flows. Said magma flows work more like rivers (and waterfalls). The minerals present in these areas seem to be able to stay solid even at very high temperatures, which could explain why some areas remain unchanged, and the native creatures in these areas, by absorbing said minerals these creatures are able to resist the ridiculously high temperatures and some even dive in magma without problems.

Hunters are not human
The Hunters may look human but they are in fact some form of super human. They can carry and effectively use weapons as large if not larger then themselves, they can survive forces that would reduce a human to a smear on the ground, and they are capable of holding their breath for extreme lengths of time and draw oxygen from oxygenated water (passing through small patches of bubbles refill your breath meter)
  • It's implied that they're eating bits of the monsters that they hunt, so the hormones and whatnot from various giant critters are probably having some kind of effect...
    • Alternately, if we're going with the Lost Colony theory, Hunters were deliberately designed to ward off the megafauna that runs wild, kind of how some of the firelizards in Dragonriders of Pern were genetically augmented into dragons in order to ward off the Thread. Maybe early settlers used DNA from more primate-like monsters like the Congalala, Blangonga or Rajang in order to create the first Hunters, giving them the kind of endurance and strength you'd find in the megafauna. With regular interbreeding with ordinary humans, Hunters became more humanlike in appearance while still maintaining their nonhuman capabilities. Either that or they're the offspring of super soldiers who settled on the planet in order to get away from war. Alternately...
      • Alternately, they could be the result of interbreeding with Wyverians, as they are also quite human looking (long ears, toe talons, and odd aging habits aside), and are shown to be competent hunters (one piece of art shows a scrawny elder Wyverian standing over a monoblos holding up its horn), add this to the fact that most of the villages as well as the guild seem to be run by Wyverians...
    • The art books reveal that they are descended from the artificially created super soldiers the Ancient Civilization created to help fight the Elder Dragons.
The monsters are the end result of Gaia's Vengeance and the Hunters were created by humanity.
Think about it: when a monster takes you down, they don't eat you, they leave your body, thinking you're dead. That can only mean that the monsters are intelligent enough to know that humans are the most dangerous creature on the planet. Ignoring the gameplay mechanics and looking at the world itself, the monsters may have been the result of evolution, like humans kept killing and killing and only bigger and nastier animals were left behind. The more humans kept invading their territories, the more humans kept dying. The end result? Monsters that (allegedly) eat humans, thus explaining why they're so big: humans are fucking EVERYWHERE, so with enough humans, monsters would have tons of nutrition to grow big. Hunters were created to combat the threat.
  • That would at least explain why most monsters have evolutionary features that would be absolute overkill in the context of anything other that combat; a lot of monsters are designed specifically for combat (we all know it's due to Rule of Cool) but being able to shoot a water laser doesn't really do much apart from tons of damage.
The Ceadeus is based off of the Sumerian god Enki
The Ceadeus has traits of both a goat (The prominent horns and "beard") and a fish (living in the water and having a whale-like tail), both sacred animals of Enki. (Which were later combined to form the "Capricorn", which again the Ceadeus has an uncanny resemblance to) As well, both Enki and the spoiler: Ceadeus live in underground oceans. (Though freshwater in the case of Enki and saltwater in the case of the spoiler: Ceadeus) Also, the Akkadian version of Enki's name is "Ea", which is right there in the name: cEAdeus.
The world of Monster Hunter was, millions of years ago, invaded by the Kaiju
Just like in Pacific Rim, the Kaiju invaded the Monster Hunter world through a rift in the ocean floor. However, as explained in the movie, a pristine, earth-like world is not ideal for Kaiju colonization, so the rift was closed and the remaining Kaiju were left to fend for themselves. While some of the Kaiju's traits, more practical for indiscriminate killing than survival over a long period of time, were evolved out, such as their massive size, Multi-Armed and Dangerous traits and Bloody Murder abilities, some of their impractical traits, such as highly specific and energy-consuming weaponry and needless aggression remained. The result, of course, are the titular monsters of the game, which highly resemble the Kaiju. The Pseudo-Wyverns, who have wings that double as arms and run on all fours like cats, and the Cave Wyverns (The Gigginox and Khezu), who have similar attributes to Pseudo-Wyverns, use poisonous sacs and have prehensile tails, are descended from Otachi clones, while Brute Wyverns, who are dinosaur-like in behaviour and size and tend to have distinctive crests on their head that can be used in a charge attack, are descended from the clones of the Trespasser/Knifehead/Scunner-type Kaiju. Leviathans, who have crocodilian body structure and are the most adapted to underwater combat, come from Raiju clones. Elder Dragons are descended from the enormous, mysterious, Class-5 Kaiju.

Pink Rathian and Azure Rathalos are hermaphrodites.
The Rath species of monster is split into two parts: the green-colored female Rathian and the red-colored male Rathalos. This brings us to the two subspecies. Pink Rathians' dull pink scales make them look more like a Rathalos. They also change their fighting style to be a little more like a Rathalos, spending more time in the air and added fire to more of their attacks. Similarly, they lose the Rathian's motherly instincts (normally Rathians will come running if you pick up a wyvern egg, but Pink Rathians don't care about eggs at all). Azure Rathalos, similarly, is colored a little more like a Rathian and has more poison in his attacks, again like a Rathian. This is because these two subspecies are "in between" Rathian and Rathalos; they were born as hermaphrodites, having the traits of both the male and female of their species.

The Monster Hunter Frontier world is an Alternate Universe from the main series.
Of course, we do know that that Frontier development team is completely different from the main MH staff, but In-Universe this would certainly explain why that series has wildly different creatures from the home and handheld versions, despite sharing the same locales as the 2nd generation games. Differences in monster distribution and migratory patterns would have affected creature speciation, leading to the unique specimens found only in that game.

Monster Hunter is a prequel to Pokemon
Long before humanity domesticated the creatures that we know as Pokemon those creatures wandered the Earth, a constant threat to the developing humans. To defend themselves against these threats hunters began using parts of the monsters themselves as weapons and armour, eventually this philosophy gave way to directly using the monsters to fight other monsters.
  • Stories can serve as the intermediate stage to this. Society has evolved, and people learned to raise monsters as mounts. (Note that pets already exist in the main series in the form of Poogies/pigs, and pet monsters in Frontier.)

The Cheeko Sands Elder's husband is still alive
If you talk to one of the felynes at Cheeko Sands, one of them mentions finding a message in a bottle stating "Hunter with the Sword and Shield looking for Cheeko Sands." The Elder's husband is known to wield a Sword and Shield, as evidenced by the Heroic Blade. Logically, one can assume that the message comes from the Elder's husband.

Furthermore, I have a theory as to WHY he can't find Cheeko Sands. Cheeko Sands is stated to only be found by people who lose their way. The Elder mentions that her husband had an excellent sense of direction, and can't understand what is taking him so long to get there. Therin lies the problem. Since he has an excellent sense of direction, he cannot lose his way. If he cannot lose his way, he cannot find Cheeko Sands.
  • This makes sense. If it's true, then it's both a Crowning Moment of Heartwarming and a Tear Jerker at the same time. Although a bit of Fridge Logic will still sink in here: after the Capital C Caravan discovers Cheeko Sands for the first time, the group is able to return to it regularly at the player's behest. Going by this, the reason he never stumbled across his family yet may be because the husband needs to lose his way first in order to find his way to the island.
    • Confirmed in one of the G-Rank event quests, where the client, listed as Sword and Shield Hunter, asks you to slay "an old adversary", an Akantor. Said client says he's looking for a village, and that "someone is waiting for him".

The world of Monster Hunter is also the Breath of Fire world, ages after Myria was defeated
There are two versions of this theory, one based off of the main trilogy and the other based off of 4's Alternate Universe, both of which involve humanity abusing technology to create biological weapons, resulting in the monsters. It's not a perfect theory, granted, primarily due to the predominantly Low Fantasy Monster Hunter universe, but some parts fit too nicely to be ignored:
  • There are many factors in BoF3 that could easily lend themselves to the Monster Hunter world:
    • After Ryu finally defeats Myria and sends her space station crashing down, whatever remained of the technology from Space Station Myria and Caer Xhan may have made its way to the rest of the world, and humanity may have found a way to create vehicles that can traverse places like the Great Desert, which eventually turned into what we know as the Sandsea (with the Oasis town turning into Loc Lac City).
    • However, this doesn't mean that monsters and malevolent dragons no longer exist; some Dark Dragons may have resurfaced to threaten the world, such as Fatalis which is shown to have a cunning intelligence—they may have only lost the power of communication over the ages due to some deleterious influence, or they choose not to speak. That, or judging by the existence of Gogmazios, some of them may have been engineered by military scientists as biological weapons, using methods similar to what Dr. Palet attempted. In this case, Myria would have been correct about humans abusing her technology for wicked ends, similar to what she described happened in the city of Caer Xhan.
    • The Brood, on the other hand, had recovered and managed to live on as the Wyvernian race, having been De Powered by the sacrifice of their draconic abilities. This would explain why they possess reptilian features. Note that their Japanese name is the Dragon Tribe (竜人族)trans .
    • Structures like the Tower, which is described in the game as battlements created by an ancient civilization to help ward off powerful elder dragons, may have been fortresses built by Myria to combat and contain the Brood. Note the "contain" part: in Frontier, there is an entire section of the Tower filled with traps and holding cells, notably the one where you fight rare creatures like Mi Ru.
    • Certain Ancestral Weapons that you get from mining Rustshards and Ancient Shards seem to possess extremely advanced technology, similar to the Chrysm-powered machines in BoF3: examples are the Obelisk Gunlance, which has visible glowing circuitry along its damaged sections, or the Skyscraper lance which has independently moving drill parts. Note that these advanced-looking weapons also possess the Dragon element, which would be lethal to Ryu's kind.
    • The Dragongems that hunters occasionally recover from elder dragons may in fact be Chrysm, which would explain why they're needed to craft certain endgame weapons and armor—they act as a power source.
  • Conversely, BoF4 appears to match the world of Monster Hunter better in some regards, since at the end of 4 the Ryu/Fou-Lu hybrid proceeded to De-Power all the dragons, thus removing most traces of whatever would be considered High Fantasy from their world (although this wouldn't fully explain the seeming total absence of anything related to Practical Magic). However, note that the renegade Mad Scientist Yuna managed to escape Cray's wrath near the end of the game, which would mean that he's the mastermind behind the existence of malevolent elder dragons: he'd been reverse engineering their power as weapons of war—possibly to try and profit off of them—but they may have proven too much to control in the end, leading to them running wild and taking over many habitats around the world. That, and an actual Sandsea exists in the Eastern Kingdom.
Khezu actually does have a BGM track.
It's called 4'33".

Monster Hunter Stories will be like an awesome new Monster Rancher game that we will never have
The applicable trope is Spiritual Licensee. However, no more inserting CD's to get monsters, it'll be entirely in-game egg hunting and breeding to get more monsters in your stable.

Wyvern tears (and by association Beast Tears, Toad Tears, etc) aren't tears.
They're saliva. Think about it. Enemies are more likely to drop them when they're tired, which is usually shown visually through, among other things, drooling. They also tend to drop them while eating. How many people do you know who cry whenever they eat? And the Khezu drops them (despite having no eyes and presumably no tear glands) sometimes when it does its "dripping spit from the ceiling" move.

Yep, you're not collecting tears, you're collecting spit. As for whether that makes it better or worse...

Dungeons & Dragons actually does exist in the Monster Hunter world
But not in the exact form we know it. It still uses the core d20 mechanic (hence Guildmarm's overexcited comment), but the "dungeons" are hunt grounds, and the "dragons" are Elder Dragons, and all the other monsters leading up to them. It's a system for normal people to roleplay as Hunters, using imagination for all the thrills without the risk of getting horribly maimed.

The monsters were created by the Seneschal.
The Arisen and their Pawns discovered that fighting the Seneschal's monsters was only playing into that deity's game, and perpetuating the eternal cycle of destruction, and so they decided to put a stop to it. They trained regular humans to become hunters and created the Dragonators and other weapons that could help them to fight back against the dragons and monsters without the Arisen making things worse.

The Seneschal began to create more and more devastatingly powerful monsters, pulling all of the world's magic away to use to create those monsters, but humanity continued to persist in defiance.

The world of Monster Hunter is the world of ARK: Survival Evolved.
The earliest Monster Hunter takes place a few hundred years after ARK, when humans have reasserted some basic civilization and explored the rest of the ARK planet. The monsters are the result of humans breeding increasingly powerful mounts from the prehistoric stock of the ARK, along with potential interference from whoever created the ARK in the first place. Like those of Monster Hunter, the humans of the ARK are inordinately strong and resistant, able to take down foes many times larger than themselves on foot.

The Gourmew Chef is Tubbs.
After growing bored of the gluttonous thief lifestyle, on top of yard owners putting out Thrifty Bitz as punishment, he started cooking his own meals. The Guild found him doing such and scouted him out, offering cans of Deluxe Tuna Bitz as salary.

The Health Bar is a protective aura
The is would explain the hunters' resilience. Basically, Hunters are surrounded by an aura that takes damage in their stead. It's the reason that their bones don't break and their limbs don't get ripped off—instead of the force being concentrated on whatever part of their body they were hit, the damage is spread equally across their aura, which takes the hit for them.

Additionally, the aura is what allows Hunters to not take fall damage. They don't protect you from everything—get knocked around enough and you'll get Stunned, get hit by certain attacks and you'll get paralyzed, etc. Certain buffs and debuffs are a result of things interacting with the hunter's aura rather than their body. Potions don't heal your body, they restore your aura. The aura would take damage from poison as it works to prevent it from harming your body. The oxygen gauge is a function of your aura too, allowing you to breath under water, but requiring occasional infusions of air to keep the process up.

When it comes to restorative items, you do actually consume them. The aura isn't just a magical shell, it goes through your entire body. Ingesting Antidotes and other things is just how you apply their effects to your aura. Nulberries, for instance, might catalyze a reaction in your aura that makes it purge your aura of Blights. The sound waves from Hunting Horns and the dust from Lifepowders effect you because they effect your aura. I also figure that Dragonblight is a unique element that is designed to work against auras specifically.

It would also explain K Os, carting, and how NPC Hunters have been injured on hunts. Having your aura reduced to zero could be enough of a shock to the system to make you faint—or it could be that Guild Hunters are trained to play dead when their aura breaks so they can be safely carted away. But if a Hunter decides to hold their ground after losing their aura, they take the injuries to their body. Considering the monsters, this is easily fatal or at least maiming. It might also explain the 3 cart limit—after your aura gets beaten out of you three times, it might need time to stabilize before it can reliably protect you again. For multiplayer hunts, the Guild just decided it was safer to not count K Os separately.

I think that the Guild (or the Wycademy, probably) got the idea to create auras for Hunters from monsters. Monsters have natural auras—they aren't as good as the manufactured ones for Hunters, but they have them. Monsters can still lose limbs and have parts of their bodies break, but their aura protects their core functions (i.e. you can cut off a monster's tail but not their heads). That and the fact that they take different amounts of damage on different parts of their bodies.

Armor skills also effect you via your aura. Most obvious are the ones that effect your health bar. But it makes the most sense for most armor skills to effect you via your aura, since you can get their effect via interchangeable Decorations.

This is also at least part of why monsters recognize you as a threat. Civilian humans have no aura, only the Hunters do, and monsters are able to sense that.

As for how the aura can even exist...

Hunters have been altered by Elder Dragon Blood, which explains their superhuman abilities
Having it be Elder Dragon Blood is more my pet theory than anything, but considering its status as a mysterious, powerful, and valuable substance, I figure it's the most likely candidate.

Basically, the Guild developed a method to give humans a fighting chance against monsters (which includes the aura thing I explain above), and that method utilizes Elder Dragon Blood. They might consume it, or bath in it, or have it injected—the details are unimportant.

You figure that when you kill an Elder Dragon, you're guaranteed to get some blood from it, right? Except you don't always get it as a drop. What I think happens is that the Guild will always take most of the blood when you kill an Elder Dragon, and that's where they get their supply to create more Hunters. Any Elder Dragon Blood you get is leftovers.

As a result of this procedure, not only are Hunters able to perform all the crazy feats we know and love (the aura stuff I mentioned above, plus being able to actually wield a GS, etc.), monsters can sense something Elder Dragon-ish about them, which is why even the Elder Dragons react to them as a serious threat.

I figure the real explanation as to why this all works is either A) AWizardDidIt magic or B) MagicFromTechnology nanomachines. I like option B better, since there was canonically an AdvancedAncientHumans advanced ancient civilization that went extinct and left a bunch of its technology lying around. Lots of different types of nanomachines running amok (but thankfully programmed to avoid the Grey Goo scenario) could explain a lot about the monsters themselves—basically, they're all natural nanomachine cyborgs, which is why they can perform such crazy feats. The auras I mentioned previously would be a function of nanomachines for both monsters and Hunters. The nanomachines found in Elder Dragon Blood would be especially potent.

How much the Guild or the academic community understands about nanomachines is up for debate. The Hunters themselves don't care much, as long as it works.

The Ace Hunters got carried to G rank by having their hunting buddies do all the work.
It would explain why they struggle against a Low Rank Gore Magala.

If there's a Monster Hunter X G / Monster Hunter Generations Ultimate...
The monsters, in addition to Hyper versions, would gain Another or EX versions.

More seriously, regarding XX, its Western-regions name...
...will probably be either Generations Unite or New Generations.
  • Given the previous naming scheme, it's more likely to be Generations Ultimate, or possibly Generations X.

Monster Hunter is set in the far future of God Eater.
A long time has passed since the Aragami infestation. In fact, humans are now Aragami as well. The Oracle cells had integrated themselves into all life on the planet, from trees to animals to humans. Humans no longer need Devourer mode for their God Arcs. They don't even need Bias Factor inducing armlets anymore. Everything they make is now a God Arc, and everything they eat is now devoured.

And the other sentient races are just Aragami offshoots of Humanity. Because Oracle Cell evolution or something.

There will be a MonHun game on the Switch.
It'll be an HD port of XX that's cross-compatible with the 3DS version for multiplayer and save-porting purposes (similar to 3 Ultimate on 3DS and Wii U) and/or Monster Hunter 5.

Part of Monster Hunter's lack of Killer App status in the West is the lack of recent portable installments, and with the Switch being a hybrid portable/home system, that means Monster Hunter on the Switch can appeal to hunters Western and Eastern alike.

The series takes place in the Jurassic Park universe.
We know the Ancient Civilization was into overambitious super science that led to a retaliation from the Elder Dragons and the humans of the Monster Hunter world are descended from artificial super soldiers created to fight them, meaning that genetic manipulation was well understood. Add in that some monsters look like real dinosaurs or other animals with modifications, and it seems that InGen still never learned their lesson.

After several major missteps, including two island theme parks and a nature preserve all going pear shaped, they kept going with Jurassic World. Then they created the Indominus rex from scratch to be a bigger, scarier alternative to the apparently now blase T. rex. How? Grafting together genes from T. rex, Gigantosaurus, cuttlefish, Velociraptor, and possibly human.

So that Tigrex basically being a winged Allosaurus, or the -dromes being various raptors? InGen kept going and created the Elder Dragons, on whom standard weapons no longer worked. When everything went to pot, they just kept going, this time with human soldiers. They created super-strong fighters who were able to fight back, but then someone took the nuclear option (i.e., actual nukes) and resulted in an Apocolypse How. Of course, this would all be decades or even centuries after the movies take place.