The Pokewalker is a device that came packaged with "Pokemon SoulSilver" and "Pokemon HeartGold." Acting like a Pokemon-themed Tamagotchi, you can transfer a Pokemon from your game to the Pokewalker and take it with you, playing mini-games and catching other Pokemon. If you lose the Pokewalker, you still can retrieve your old Pokemon using a simple button command at the main title screen, although you may want to purchase an extra Pokewalker.
Instructions
1
Turn on your Nintendo DS system and press start at the title screen.
2
Select the Pokewalker options.
3
Press and hold "Up," "Select" and "R" at the Pokewalker connection screen. This will recover your lost Pokemon.