I’ve decided to play through Pokémon: Let’s Go Pikachu once more, this time with a more varied team and to a more complete degree. But after watching the movie Pokémon: I Choose You, there are some things about the original Pokédex that I feel need updating.
While the movie is predominantly set in Kanto, it clearly is set in a world that includes all the other regions created since the first generation, unlike Let’s Go, which mostly operates in its own bubble. Because of that, some of the Pokémon that appear (or rather, don’t appear) doesn’t really make sense, because later generations have gone on to introduce further evolutions or pre-evolutions of those Pokémon. Furthermore, the fact that you play as new characters (Chase/Elaine) with a new rival (Trace), and can meet the player characters from previous games (Red/Blue/Green) means that this is clearly set some years after, when this increased number of Pokémon would be common knowledge (in-universe).
As such, I’ve decided to go through what the Kanto Pokédex seen in the Let’s Go games should look like, considering where it fits in the timeline: