Asked in Pokemon Red Blue and Yellow
What Pokémon can be caught in Pokémon Yellow?
all of them except koffing, weezing, meowth, Persian, ekans, arbok, machamp, alakazam, golem, gengar, jynx, electabuzz, if you chose a helix fossil then you get omanyte but if get the dome fossil you get kabuto. If you get hitmonchan then you can't get hitmonlee and vice versa. The rest that you can't catch then you trade with people in the game hidden along paths and Pokemon centers and buildings