Pokémon

Pokémon are a group of fantastical creatures who are the central focus and main feature of the Pokémon franchise. There are 901 different species of Pokémon, and they take from a wide variety of inspirations including animals, plants, mythological creatures, and objects. Pokémon are found all over the world of Pokémon, and their habitat varies depending on the species, much like creatures in the real world. The most powerful types of Pokémon are Legendary Pokémon, who are usually the subject of myths and urban legends within the world of Pokémon.

Each Pokémon has an elemental type, which affects their attacks, abilities, and weaknesses. For example, Pikachu, being an Electric Pokémon, specializes in electrical attacks, which are effective against both Flying and Water Pokémon, but in turn are weak against Grass Pokémon and ineffective against Ground Pokémon. Each Pokémon has unique stats and characteristics. For example, Darkrai is very fast and strong but has mediocre defensive ability. Certain Pokémon have their own evolutions, which are different Pokémon that they can evolve into once certain requirements have been met. For example, a Pichu can evolve into a Pikachu with high friendship, and a Pikachu can then later evolve into its final form, Raichu, with a Thunder Stone.

The relationship between a Pokémon and a human varies, depending on the species and personality. In the world of Pokémon, several humans become Pokémon Trainers, who capture Pokémon using a Poké Ball to then keep them as a traditional pet or to have them engage in Pokémon battles. Several Pokémon Trainers go on a journey with the goal of capturing every known species of Pokémon, and they take a Pokédex with them to catalog each's Pokémon's data.

Pokémon are grouped through various means, such as by color or type. One unique way in which Pokémon are grouped is by generation. The Pokémon franchise started off with 151 Pokémon during the first generation. A generation usually begins when new Pokémon are introduced, such as when 100 Pokémon were introduced in the Generation II titles, Pokémon Gold and Silver Versions, raising the total number of Pokémon at the time to 251.