Pokémon Red and Blue Versions are part of a series of RPG games called "The Pokémon Series", and is part of the first generation of Pokémon games. As a young Pokémon Trainer, your goal is become the greatest Pokémon Master ever, by capturing and training up to 151 Pokémon. Not all Pokémon are available in one version, and you'll need to trade with friends using a Game Link cable to catch 'em all!

Although used on a Gameboy Color, the main pallet is red, black, and gray.

Contrary to popular belief, Pokémon Red and Blue weren't the first games released in the series, Japan actually received two games before this, which weren't shipped internationally, those titles were Pocket Monsters Aka and Pocket Monsters Midori (Pokémon Green and Pokémon Red).

After the success of the original "Aka and Midori" versions of the game, an enhanced "Ao" version (Pokémon Blue) was released in Japan. The enhanced "Ao" version was later reprogrammed and split into two versions for the international release, which later became the versions of Pokémon Red and Blue that were released in the United States on September 30, 1998.

A Pokémon Green ROM was released, however it was translated into English exactly from Japanese, and therefore is quite hard to understand, with captions such as "but unable to determine smoothly!", and "CATAP's firm tO assail!"