Here's why:
* AR Codes are for Events: AR codes are used to access special events in Pokemon games. These events usually involve catching specific Pokemon, getting items, or participating in special battles.
* Secret Keys are for Trading: Secret keys are a feature in Pokemon games that allow players to trade with each other, even if they don't have access to the internet. These keys are generated by the game itself and are unique to each player.
To trade in Pokemon Platinum, you will need to:
1. Find a friend with a copy of Pokemon Platinum.
2. Select "Mystery Gift" from the main menu.
3. Choose "Receive Gift" and then "Yes."
4. Select "Receive via Trade" and then "Yes."
5. Both players will need to select "Start Trade."
6. Once you are both connected, you can trade Pokemon.
Note: You will need to be in the same room as your friend to trade in Pokemon Platinum.
If you're looking for AR codes for specific Pokemon or events in Pokemon Platinum, you can search online for "Pokemon Platinum AR codes" and find a list of codes. However, be careful about the websites you use, as some may contain fake or outdated information.