Pokémon Blue Version is a role-playing video game developed by Game Freak and published by Nintendo for the Game Boy. Released in 1996 as a refined version of Pokémon Red and Green, it features enhanced graphics and sound. The game addresses several glitches from its predecessors. In international markets, Pokémon Blue serves as the basis for Red and Blue, with altered wild Pokémon and exclusive Pokémon lists.
Pokémon Blue is the third core series Pokémon game released as a minor revision of Pokémon Red and Green, which were released earlier that year. It was thus the first solitary version in the core series of Pokémon games. Various fixes in the game include a graphics and sound upgrade, as well as the removal of several known glitches that had been found in the original pair. Outside of Japan, its graphics, game engine and script formed the basis of Pokémon Red and Blue, while the wild Pokémon and game-exclusive Pokémon lists were changed to match Red and Green.