No, you do not need it. the poke walker is just an extra accessory to go with the game to help train Pokemon.
No. The pokewalker enables you to put Pokemon on it, and then you can walk around with them, but it is not essential.
You can't put a Pokemon in the pokewalker in Pokemon platinum, as the pokewalker was designed for only Pokemon Heartgold & Soulsilver.
NO The Pokewalker was made especially and only for SoulSilver and HeartGold, so the only way you could walk a Pokemon from your Platinum game is if you traded that Pokemon to SoulSilver\HeartGold and then transfer it onto the Pokewalker
The PokeWalker allows you to walk with a select Pokemon from your copy of HeartGold and if you walk enough, you can capture extremely rare Pokemon (though not legendary).
Yes you can if you have Mew in your Pokemon SoulSilver/HeartGold You can put Mew in the Pokewalker.
The pokewalker, yes but not the figure.......
To get the Pokewalker, you have to buy the game that goes with it (because otherwise, the Pokewalker is useless), which is either Pokemon HeartGold or SoulSilver.
you dont get it in the game you get it in your pokewalker
you can buy a pokewalker by buying the game Pokemon heartgold and soulsilver game pack.
You can just find someone else with a pokewalker
Please see the related link below.
quiet cave on pokewalker