>>20911581It doesn't matter because you're not being specific.
Bulbasaur is the first pokemon by dex number, making it the first discovered or at least catalogued in-game.
Rhydon was the first pokemon designed and put into the game.
Mew was the first pokemon to get a trademark and is considered one of the oldest relatives of all pokemon today in-game.
Arceus was the first pokemon story wise since it created everything else.
However, even without context I'd say it's either Rhydon, Mew or Arceus.
>Rhydon was the first pokemon created>Mew was the first pokemon to legally exist>Arceus was the first pokemon story wiseOther than that you'll have to provide more context
