Professor Sycamore will let the player choose one of these three Pokémon after meeting him in person and beating his team of Kanto starters in battle.
Professor Oak offers one of this trio of Pokémon to the player in Pokémon HeartGold and SoulSilver after the player has defeated Red, making reference to the fact that he gives them out as starter Pokémon in Kanto-based games, suggesting the player will be able to make it to the next town with one of these Pokémon by their side. In FireRed and LeafGreen, the choice of starter Pokémon also determines which of the Legendary beasts will roam the Kanto region after defeating Team Rocket in the Sevii Islands-if the player chooses Bulbasaur, Entei will appear, Suicune will appear to those who chose Charmander, and Raikou will appear to those that went with Squirtle. The player's rival will then pick the type-advantageous starter Pokémon, and the remaining Pokémon will sit in its Poké Ball on Oak's desk for the rest of the game.
In Pokémon Red, Green, Blue, FireRed, and LeafGreen, Professor Oak will bring Trainers to his lab to give them one of the following to begin their journey: At least one of the player's rivals will also always choose or have a starter Pokémon, typically the one that has a type advantage over the player's.
In the core series games ( with two exceptions), the player can choose a Fire-, Water-, or Grass-type starter Pokémon at level 5. 3.4 Pokémon Gold & Silver: The Golden Boys.3.3.1 List of starter Pokémon in Pokémon Adventures.2.5 Pokémon Omega Ruby and Alpha Sapphire Animated Trailer.2.3 Pokémon Black 2 and White 2 Animated Trailer.2.1.1 List of starter Pokémon in the main series.1.1.5 Base stat comparison when Mega Evolved.1.1.4 Base stat comparison when fully evolved.