no!u just need to defeat the elite four and get the national pokedex and run around the
gr*** near pallet town the one near the sea.

just beat the elite 4 it will randomly appear in gra$$

step 1: beat the elite 4
stp2: u need to look patiently
step3: get the startes
step4: raikou-squirtle
entei- bulbasaur
suicune- charmander
step5: donot use any of your masterball to other pokemon bec the dogs knows how to use
roar