Turtwig is the Grass-type Starter Pokémon for Pokemon Platinum. Turtwig appears to be a green-ish Pokémon with a small twig on its head. It has large yellow eyes and its face is oddly shaped and it evolves into a Grotle at level 18 of the game, which later evolves into Torterra at level 32.
Chimchar is the Fire-type Starter Pokémon in Pokemon Platinum. Chimchar has a light colored stomach with a little swirl at the top on its chest. It has a tail with a burning flame. Chimchar evolves into Monferno when it reaches level 14 and into Infernape at level 36.
Piplup is the Water-type Starter Pokémon in Pokemon Platinum. It is a light-blue penguin-like Pokémon, which is covered in thick down to insulate against the cold. Piplup evolves into Prinplup at level 16, which then evolves into Empoleon at level 36.