All three starters

This requires 2 game versions of Ruby, Sapphire, or Emerald. They can be 2 different versions. Start a game. Choose any of the 3 starters. Go through the normal steps. Defeat your rival. Catch any other pokemon. Trade your starter to the other version. Then do it again, but with a different starter. Then do it one more time. Choose the last starter. Defeat your rival and then catch any 2 pokemon.Trade those 2 pokemon for the other starters on the other versions, and tadaa! All three starters. It also allows you to collect trainer ID's for the Lilycove Department store's lottery. This works for pretty much any pokemon game as long as you use the proper game to trade to.