If you find any errors or missing information in this guide, or if you have any feedback, please let me know.
Choose the Games that You Want to Trade Between
To begin, choose the game to trade from, OR use the form below.
What You Need
To send pokémon from Pokémon Emerald to Pokémon Platinum, you need a Nintendo DS that has a GBA cartridge slot.
Please make sure that your cartridges are genuine Nintendo products! Counterfeit games might not be able to trade. Here is a guide that explains how to check if a GBA game is genuine or fake: How to Spot Fake/Bootleg Pokémon Games. Here is a guide that explains how to check if a Nintendo DS game is genuine or fake: Quick and Easy Ways to Spot a Bootleg Nintendo DS Game. For more information, including contact information for reporting bootlegs, visit Nintendo's anti-piracy web site.
Before you can send pokémon from Pokémon Emerald to Pokémon Platinum, in Pokémon Platinum you need to get the Pokédex from Professor Rowan in Sandgem Town, and you need to have at least two pokémon in your party.
How to Trade
This is a ONE-WAY TRANSFER! Pokémon sent from Pokémon Emerald to Pokémon Platinum cannot be sent back to Pokémon Emerald!
Put your Pokémon Emerald cartridge into the GBA slot of the Nintendo DS. Put your Pokémon Platinum cartridge into the DS game slot. Start your Pokémon Platinum game and choose the "Migrate from Pokémon Emerald" option in the menu. When asked to migrate, say Yes. When asked to confirm, say Yes. Choose exactly six pokémon (no more and no less) to transfer. After choosing, say Yes, and when informed that the pokémon cannot be returned to the GBA cartridge, say Yes.
Then start your game of Pokémon Platinum. You need to go to Pal Park in the game. The Pal Park is in Route 221. To get there, go south from Sandgem Town and use Surf to travel to Route 219. Go south from there to Route 220, then use the northeast path to go to route 221. Keep going east until you reach a building. This is Pal Park. Go inside.
Using the Pal Park
Before using Pal Park, you might want to bring a Pokémon with you that knows Surf, because certain areas of Pal Park are only accessible with Surf. If this is your first visit, Professor Oak will talk to you. Afterward, go up to the counter and talk to the guy wearing a construction helmet. Say Yes when asked to participate in the Catching Shows. He will ask if you want to read the instruction manual. When you are done, choose UNDERSTOOD! Then say Yes to participate in a Catching Show now. He'll give you six Park Balls. Then you will enter the Pal Park. Run around in the tall grass to encounter the pokémon that you migrated from Pokémon Emerald. The Park Balls always capture successfully, just like Master Balls (but you can only use Park Balls inside Pal Park), so just throw a Ball and you will catch the pokémon. Repeat this process to catch all of the pokémon that you migrated from Pokémon Emerald. After you have caught them all, you will be asked if you want to put all of the caught pokémon in PC Boxes.