As far as i know there is one with every copy of the game
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no ;)
No, you do not need it. the poke walker is just an extra accessory to go with the game to help train Pokemon.
you can't i tried trust me. if you did delete your saved file and you had a Pokemon in the walker it will be there until the battery dies get a new one.
You can't catch Skitty in Pokémon HeartGold or Pokémon SoulSilver but you can catch it in the Hoenn Field in the PokéWalker device and then transfer it over into HeartGold or SoulSilver.poke walker .
Yes, The PokéWalker is included in Pokémon Heart Gold and Soul Silver
From the Poké Walker. You must have walked enough steps to unlock the 'Quiet Cave' route.
a lot. there will be sound enhancement, the poke walker. the poke walker is like walking your Pokemon in real life . MORE INFO: touch sceen enhancement, and awesome legendaries
Steps should be transferred whenever the pokewalker is connected to the game.
Your Poke-walker in Suburban Area, or breed an Electabuzz (catch in Kanto's power plant)
You can get a Munchlax by breeding it with Snorlax holding a Full Incense, or you could transfer it from the Poke Walker.
The only way to get it out of the pokewalker is to send it back to the game itself, as if you put a Pokemon on the pokewalker already. It's quite simple, actually.