Instructions
Begin a "Pokemon: SoulSilver" game.
Travel to Route 229 at the beginning of the game.
Speak to Ethan or Lyra to learn how to capture Pokemon.
Travel through the game until you encounter a wild Pokemon that you want to capture.
Battle this Pokemon and deplete its health bar but do not defeat the Pokemon.
Select the "capture" option in the menu.
Select a Pokeball to use against the wild Pokemon. If the Pokemon's energy is low enough it will stay inside the Pokeball and not escape.