* Starter Choices: Pokemon Platinum starts with you choosing Turtwig, Chimchar, or Piplup as your starter. These Pokemon are not Bulbasaur, Charmander, or Squirtle.
* Limited Availability: These three Pokemon are only obtainable in the original Pokemon Red, Blue, and Yellow games and their remakes.
How to Get Them:
1. Trading: The only way to get Bulbasaur, Charmander, and Squirtle in Pokemon Platinum is through trading with someone who has them from a different game. You can trade using the Nintendo DS's Wi-Fi connection or through local wireless connections.
2. Events: Occasionally, Nintendo has held events where players could obtain special event Pokemon, including Kanto starters. These events are rare, but they could offer a chance to get those specific Pokemon.
Important Note: The National Pokedex is unlocked after completing the main storyline of Pokemon Platinum, and you can then record all the Pokemon you have caught or traded for.