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Starting with Black and White, the third version became split into pairs.
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Usually in the year following the game's release, an expanded version is released that alters the storyline, changes the available Pokémon and adds many quality of life features like move tutors. Some games make larger changes such as Ruby and Sapphire with the different villainous teams and X and Y with exclusive Mega Stones. Each of the paired games generally differ with the Pokémon available and minor storyline changes such as the main legendary. All the games between each main pair are considered part of the same generation Currently there are 8 generations each having several new Pokémon released each new generation. The Pokémon games have always been released in pairs, along with a third game typically released later. Main articles: Pokémon games and List of Pokémon games The word Pokémon remains unchanged whether referring to the singular or plural (as is the case with deer or sheep), and the same applies to each species name. To date, the franchise has a grand total of 901 Pokémon that lie at the heart of the series, a figure which has grown substantially from the 151 monsters in the original Pokémon Red and Blue games. Pokémon is also the collective name for all of the fictional species within the Pokémon universe.
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The game’s catchphrase and slogan, in the English language versions of the franchise, used to be "Gotta catch ’em all!", although it is now no longer officially used (except by Hasbro and in the title sequence to Pokémon Chronicles). The original Game Boy video games have since been merchandised into anime, movies, manga, trading cards, toys, books and other media. The franchise started from a set of video games created by Satoshi Tajiri. Romaji: Poketto Monsutā) in Japan, is a media franchise jointly owned by Nintendo, Game Freak, and Creatures through The Pokémon Company. Romaji: Pokemon), also known as Pocket Monsters ( JP Japanese: ポケットモンスター
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