Counting all versions, the first generation of Pokemon, it is still to date the best selling RPG video game of all time.

Pokeballs in the Pokémon series were inspired by a similar concept in a Japanese television show called Ultraseven.

Nintendo did not expect Pokémon to be the success it was, especially as the Nintendo Game Boy at the time was on the decline in popularity due to its age.

Butterfree in Pokémon was originally supposed to evolve from the monster Venonat but eventually that changed to Metapod who was supposed to be the predecessor of Venonat’s evolution Venomoth.

Nintendo was originally going to call the Pokémon as Capsule Monsters but eventually settled on its Japanese title Pocket Monsters.