You'll notice changes in pokemon Yellow from pokemon Red and BLue, you must choose among three pokemon, Charmander, Squirtle and Bulbasaur. Once you find Professor Oak, he takes you back to his lab, where you may choose from his remaining group of three. Your rival chooses next, and then the remaining pokeball goes to Professor Oak. But who to choose?Conventional wisdomsays Bulbasuar is your best bet; it levels up faster than the other two and, as a Grass type, it's effective against Ground and Water pokemon in the first two gyms