A new source code of Pokémon Yellow reveals that Pokémon Pink was probably another edition planned in the first generation. However, the title is said to have been discontinued by Nintendo. It also looks like chubby luff would have been on the cover. Why the project never saw the light of day remains unclear.
A few days ago, a new Pokémon Yellow source code appeared on the Internet, which gives indications of another edition. Nintendo and the Game Freak team also seem to have planned Pokémon Pink as a counterpart. In the end the project was stopped. After the release of Pokémon Red and Blue in Japan in 1996, the "Yellow Edition" followed two years later as a single title.
It is perfectly conceivable that the makers of Game Freak weren't quite sure how they wanted to launch a third branch of a Pokémon generation. Pokémon Yellow was more based on the anime template and included well-known characters from Team Rocket that were not found in red and blue. The three starter Pokémon (Charmander, Bulbasaur and Squirtle) have also been expanded with another pocket monster with Pikachu. At the moment it is still unclear which Pokémon in pink would have been used. But fans have a guess.
The obvious candidates here are chubby and pie. Because Super Smash Bros. for Nintendo 64 included Pikachu but also Jigglypuff among the fighters of the title, fans are pretty sure that it was the Pokémon for Pink. There were only four months between the release of Pokémon Yellow and Super Smash Bros. in Japan. We may never know why Nintendo ultimately decided against developing Pokémon Pink. Nevertheless, it is interesting that there are still secrets 24 years after the launch.