Blue was made before Yellow, and Yellow was based on the cartoon. I don't consider Yellow to be canon.
Thing is, in Japan, Yellow kinda isn't cannon. It is called Pikachu, not Yellow, so it doesn't even fit the naming scheme. And seeing how, like Blue, you can't catch every Pokémon without trading with at least 2 games, I consiter them to be the same type of special game.
Last edited: