Pokémon Red (ポケットモンスター 赤 Pocket Monsters Red) and Pokémon Green (ポケットモンスター 緑 Pocket Monsters Green) were the very first Pokémon games to be released. Green was released only in Japan along with Red, and later when the games were translated for worldwide release, Green was replaced with Pokémon Blue.
The player is about to enter the world of Kanto where there are 151 Pokémon waiting. Then hometown is in Pallet Town. When arriving at Professor Oak's Lab, there are 3 Starter Pokémon one can choose from. They are Bulbasaur, Charmander, and Squirtle. The player character is only allowed to choose one of them in these games, and the rival always picks the Pokémon that is your weakness. In Kanto, one must defeat the following Gym Leaders in order to advance in the game:
While in the Pokémon League, the player character will have to face the strongest trainers in the game, The Elite Four. They are as follows:
Defeating all of them, the player character will challenge the rival, who is the Champion. After beating the rival, the player character becomes the champion, but they can still battle the Elite Four repeatedly.
The last objective is to complete the Pokédex. Once the player character has completed the Pokédex, they are granted a Diploma if they talk to the employee that works for Game Freak in Celadon Mansion.
- Green is the only color edition name not to be used in the international Generation I games and this, along with the original Blue edition, are the only main series Pokémon games with their graphics and sprites sets not used internationally, with the international Red and Blue versions using different graphics sets.
- At one point of development, there were ideas of inserting the female protagonist. However, the idea was scrapped, but was introduced in FireRed and LeafGreen Versions.
- In Pokémon Gold, Silver and Pokémon Crystal, when traveling to Kanto, house designs, posters, etc. correspond to those of the original Red and Green editions, with no editing or Japanese Blue eds. Western Red and Blue.