At the start of the game, Professor Rowan allows you to pick one starter Pokemon, but you can trade for the other starters using GTS, or you can breed your starter and then trade for another, also over the Global Trade System. Or, you can take the cheater way, and: 1) Use an Action Replay code, and steal other trainers' Pokemon (hence, your rival will also choose a starter- Turtwig, Piplup, or Chimchar.) 2) Get an Action Replay code that allows you to get any Pokemon you want from the Fossil Man in the Oreburgh Mining Museum in Oreburgh City. Hope this information helps!
Turtwig, Chimchar, and Piplup.
you cant in platinum but you could trade from Diamond and Pearl or another Platinum.
the three starter Pokemon are the same in platinum as diamond and pearl. They are chimchar-fire, piplup-water, and turtwig-grass.
still the same Pokemon as d/p chimchar, piplup, and turtwig
Just follow the storyline at the start and you will meet the professor and he will let you choose a starter. Piplup:Water Turtwig:Grass Chimchar:Fire
trade with friends and/or wifi trading
try to catch your legendary. It varies on which legendary depending on what starter you chose.
starter Pokemon
Chimchar, piplup, and turtwig.
Pick him as your starter
Piplup
You can get another starter if you get all the sinnoh pokemon. Proffeser rowan will ofer a johto starter.