The Pokéwalker is a standalone device that works alongside certain Pokémon games (like HeartGold and SoulSilver). While it allows you to catch Pokémon and train them within the device, it's not a transfer tool to the main games.
Here's how the Pokéwalker system works:
* Catching Pokémon: You catch Pokémon within the Pokéwalker by encountering them while walking.
* Training: The Pokémon you catch in the Pokéwalker gain experience points while you walk.
* Transferring to the Main Game: You can transfer these Pokémon from the Pokéwalker to the main game *only if the Pokémon is already present in your main game's Pokédex*. This transfer is done through the Pokéwalker's connection to the main game.
Key Point: You cannot transfer a Pokémon that you caught in the Pokéwalker directly into a different Pokémon game. You can only transfer it to the specific game that was linked to the Pokéwalker at the time of catching it.