The theme of each game

[nesinomics]

I decided to analyze the theme of each game and these are just my theories. Red Blue Green Yellow- How humans effect nature. (Look at the creation of Mewtwo)
Gold Silver Crystal- Friendship. (I believe Gold and Silver end up developing a friendship.) Also theirs that old saying: "make new friends but keep the old one is silver and the other gold."
Ruby Sapphire and Emerald- How humans and nature coexist.
Firered and Leafgreen- same as the original.
Diamond and Pearl- How mythology effects the way people live. (Like the statues of plakina and dialga and people's references to them.)
Heartgold and Soulsilver- Same as original.
Black and White and Black 2 and White 2- Industry vs Nature (Black city and White forest.) Also the way N thinks. He thinks so black and white.
X and Y- Life and death. (Xerneas and Yveltal..
So what do guys think? Any other theories?

 

[Khoshi]

I've never thought of the games like that, but when you think about it a bit...they work really well, especially the Gen 5 related one. I see technology also being a theme for Gen 5, though that fits under industry. X/Y could have prosperity and destruction, though that's not really a "theme" imo. Still, this is pretty insightful and I thank you for bringing it up x)

 

[Hiatus]

HeartGold and SoulSilver definitely signify friendship; they have Pokémon following where you travel, which promotes that quite well. As for others, I could agree with those, haha. Diamond, Pearl, and Platinum does have another theme, though: religion. In Hearthome, there's a church (if I remember correctly), which sorts of sends us the message. Alongside, there's also some people that treat certain Pokémon as if it's god, which would be Arceus.

 

[Apollo]

I like it, but my theory goes more like this:

Kanto: Technology
Johto: Culture
Hoenn: Nature
Sinnoh: Myths

I agree with you on the industry vs nature thing in Unova, and I don't know Kalos's storyline very well, so I can't label a theme to it.

 

[Timbjerr]

I've pondered this myself, and I got some interesting theoriess by looking such things up on Bulbapedia. XD

Gen I:

Spoiler:

The first generation of Pokémon games was dealt with genetics and engineering. The three starters, Bulbasaur (dinosaur-plant hybrid), Charmander (salamander), and Squirtle (turtle), are all reptilian in nature, and take some elements from the dinosaurs. Dinosaurs are reptiles, and were one of the most successful groups of animals to exist. Bulbasaur, the most similar to dinosaurs of the three, is the first listed in the Pokédex. Other Pokémon in the generation continue this theme. Eevee is capable of evolving into multiple forms due to its unstable DNA; Voltorb is the result of a Poké Ball experiment gone awry; Porygon is a virtual reality Pokémon. These games also introduce three Fossils, the most introduced of any generation, which can be resurrected into prehistoric Pokémon: Aerodactyl, Kabuto and Omanyte. Finally, out of the five legendaries that appeared, the most powerful was man-made through genetic engineering: Mewtwo. It remains the only legendary Pokémon, apart from Genesect, created through artificial means. The uncatchable legendary, Mew, also has the DNA of every Pokémon in existence.
Bill himself invented the sophisticated PC used in most regions and accidentally turned himself into a Pokémon. Ditto could also mimic the abilities and structure of any Pokémon it encountered, making it capable of breeding with most Pokémon from Generation II and onwards. The Master Ball is the most powerful Poké Ball in the franchise, and was first engineered by Kanto scientists. With this generation being the very foundation of the Pokémon franchise, most successors have only expanded upon Kanto's basics.

Gen II:

Spoiler:

The second generation of Pokémon games were more directed towards mythology and tradition. The three starters were all "pure" element types, fitting the classic Water > Grass > Fire cycle all starters adhere to. Unlike two of the fully-evolved starter Pokémon in Generation I, and at least one of every starter trio since, the fully-evolved Johto starters maintain their single types.
This was the first installment that put emphasis on legendary Pokémon being actual legends in-game, in contrast to Mewtwo and the legendary birds of Generation I. Ecruteak City fleshed out the legends of Ho-Oh and the three beasts, their relationship with one another, and the story behind their departure (the Burned Tower). Suicune was, unlike Raikou and Entei, unavoidable in Crystal Version if the player wanted to beat the game; the remakes HeartGold and SoulSilver give the same treatment to Ho-Oh and Lugia, respectively. Lugia was also glimpsed by an elderly man in Ecruteak City, and others, who stated it looked like a dragon in the sky. Even the uncatchable Celebi was mentioned as the "Forest's Protector" at the shrine in Ilex Forest.
The Kimono Girls upheld ancient tradition in both battling Pokémon and dancing. The buildings in both Ecruteak City and Violet City have an older structure to them as well. The player must navigate Johto and Kanto, beating the new Elite Four, sixteen Gym Leaders and the original Pokémon Champion Red. This is after defeating the newly revitalized Team Rocket, searching for the fallen Giovanni. The second generation expanded upon trading through use of held items evolution through the addition of friendship, and breeding to attain pre-evolution or baby Pokémon. Kurt offered a more traditional means of creating Poké Balls via Apricorns which proved variably superior to manufactured Poké Balls. Johto is physically connected to Kanto and these games added depth to both regions.

Gen III:

Spoiler:

The third generation of Pokémon games were more directed towards nature and relationships. The three starters were collectively more symbolic to their elements than previous starters: Mudkip is based on a fish which thrives only in Water, Torchic is a chick (which, in the real world, needs warmth in order to hatch) holding its Fire internally, and Treecko is a gecko that lives only in forests with Grass. The main antagonists were either Team Magma and/or Team Aqua who want to expand the land or sea respectively. Once they awaken one of the legendary Pokémon Kyogre or Groudon, the world is flooded by rain or dried by drought. It's up to the player to set nature back on course by defeating their version's mascot or capturing it. Hoenn's people are far more attuned to nature than previous regions: Fortree City is built alongside Pokémon in the trees, while Pacifidlog Town is built on wooden rafts in the sea atop a Corsola colony, even though Corsola cannot be found there in the games. With Secret Power, a player can make a secret base out of trees, caves, or clumps of grass.
There are far more Pokémon that share relationships with other Pokémon in this generation of games, especially the legends. The legendary golems are more obvious of this; however, the version mascots all share a relationship as the weather trio. Latios and Latias are both Eon Pokémon that must be chased around the region. Pokémon such as Lunatone, Illumise, Plusle, and Wailord are related to other Pokémon, namely Solrock, Volbeat, Minun, and Relicanth, in relationships ranging from explicit to loose symbiosis. Zangoose is rivaled by Seviper.

Gen IV:

Spoiler:

The theme of this generation is history of the universe, and myths and legends. The three starters' evolutions have references to myths and legends in themselves—for example, Torterra is based on the legend of world turtle, Empoleon has references to the god Poseidon, and Infernape is based on Sun Wukong. This also reflects on its legendary Pokémon, as Arceus is the literal creator of the universe and created the rulers of time, space and anti-matter, who are Dialga, Palkia and Giratina, respectively. All three of them are involved in Sinnoh myths, as are Uxie, Azelf and Mesprit: the embodiments of knowledge, willpower and emotions.
Some standard Pokémon are also connected to myths and legends, such as Drifloon and Drifblim that in folklore are said to take children and people to the Underworld and Spiritomb who is said to be made up of 108 spirits.
Some towns still preserve their history and myths. Celestic Town is said to be present since the beginning of Sinnoh, and has a shrine that dates back to ancient times, as well as a cave painting. Some other examples are the Solaceon Ruins, which contain Unown and is said to be as old as the ruins of Johto; the Snowpoint Temple, which was created long ago to contain Regigigas; Eterna City, which contains a statue of Dialga/Palkia; Floaroma Town, which was said to be a wasteland long ago, but then was transformed into a beautiful landscape by Shaymin; Mt. Coronet; and the Spear Pillar. Canalave City houses the first Pokémon library, which transcribes many of the legends of the region. Sinnoh was meant to establish the origin of the Pokémon universe and be more mysterious and historic than other regions.

Gen V:

Spoiler:

he fifth generation of Pokémon games focuses on the relationships between opposites, such as nature and industry or humans and Pokémon. This comes from the concept of Yin and Yang, which the legendary mascots of Pokémon Black and White, Reshiram and Zekrom, are based on, with another reference being that Reshiram is the mascot of Black and Zekrom being the mascot of White—both are opposite colored to the game's color, while version mascots beforehand had always matched. The Swords of Justice also represent this theme as they are trying to prevent Pokémon from losing their natural habitats to human industry. The generation's main antagonists, Team Plasma, also fit in with this theme, as their goal is to separate Pokémon from humans. Some of the cities also reflect this theme by being aesthetically different depending on the version of the game; two major examples of this are Black City and White Forest, two version-exclusive locations. The Dream World, which is supposed to combine dreams and reality, also fits into this theme.

There's no theory on Bulbapedia about Gen VI yet, but there is definitely a prevailing theme of beauty in XY what with being based on France and Sycamore being the most handsome professor in the series' history and Lysnadre's twisted ideas of beauty.

 

[Alagasia]

Sun and Moon could be about relationships between pokemon and trainers. We see all different types of relationships, and in the anime, Ash never forcibly catches a pokemon. They all choose to join his team and often enter the pokeball of their own accord. I'm curious to see if Galagar's diverse terrain will be involved in the games theme. If it is, it could be along the lines of international unity.

 

[The Bellossom boi]

For my thoughts, I use "adventure" with a specific attribuite.

1. For Hoenn theme will be "wild adventure" since for me is ispired to Australia. Confirmed with the similar shape to the country and that's surronded by water.

2. For Sinnoh, I guess I say "joyful adventure" with my rival.

3. As Johto, I define "a great adventure" Since the player will travel both Kanto and Johto.