all that you have to do is lose your first rival battle.
The only two Starters for Pokémon Yellow are Eevee and Pikachu, your character will receive Pikachu and your Rival will receive Eevee. For additional information on Pokémon Yellow, please see the Related Links below.
It matters what starter you choose
your rival will it depends on which started Pokemon YOU choose.
His Eevee will become Jolteon if you beat him at Professor Oak's Lab and at the optional battle at Route 22, provided you beat him just at Professor Oak's Lab then his Eevee will become a Flareon and provided your Rival beats you at the Lab and the optional battle on Route 22 or you lose at the lab and you skip the Route 22 battle then your Rival's Eevee will become a Vaporeon.
You get it as a prize from beating your Rival at Silph Co.
In Ruby, Sapphire, and Emerald, there is only one possible way for another trainer to have a Mudkip. In the beginning of the game, you have the option to choose one starter Pokemon. If you choose Torchic, your rival will choose Mudkip. Your rival will always take the Pokemon that is elementally superior to yours. You choose Treecko - They choose Torchic You choose Mudkip - They choose Treecko You choose Torchic - They choose Mudkip
Yes your rival will if you choose squirtle, i have a venusaur.
The wild yellow hair friend in the game; he's in the introduction of the game.
u dawn or ur rival whichever u choose
the first guy u face is your rival he will have a l5 Pokemon which is of a better type of u choose chikorita he will have a cindaquill if u choose cindaquill he will have a totodile if u choose totodile he will have a chicorita
Unless you choose bulbasaur the only trainer with venasaur will be your rival if you chose charmander..
Your rival gets whichever Pokemon type yours is weakest to. ie you take the water, rival takes the grass.