The original Generation I Pokémon games and their updates (Red, Green, Blue and Pikachu/Yellow).
The following tags are aliased to this tag: pokemon_blue, pokemon_green, pokemon_r&b, pokemon_r&g, pokemon_rb, pokemon_rby, pokemon_red, pokemon_red_and_blue, pokemon_red_and_green, pokemon_rg, pokemon_rgb, and pokemon_yellow (learn more).
This tag implicates pokemon_(game) (learn more).