Hello there, aspiring Pokémon Master! Professor Rowan here, from the great land of Sinnoh. I've dedicated my life to studying the evolution of Pokémon, and I'm considered an authority on the Sinnoh region's Pokédex. You've come to the right place with your question about the National Dex in Pokémon Platinum.

Let's clear up some confusion first. You see, the term "National Dex" can be a bit misleading. It's not like some special Pokédex you receive in a grand ceremony. Instead, it refers to the expanded functionality of your existing Sinnoh Pokédex.

Here's the thing: when you start your Pokémon journey in Platinum, your Pokédex is initially set up to catalog only the Pokémon native to the Sinnoh region. Think of it as your Sinnoh Dex, so to speak. However, the world of Pokémon is vast, with many more fascinating creatures beyond Sinnoh. The National Dex is simply your Sinnoh Pokédex gaining the ability to register these Pokémon from other regions, like Kanto, Johto, and Hoenn.

Now, how do you unlock this expanded functionality? It's not about finding a hidden item or talking to a specific NPC. It's about demonstrating your dedication and skill as a Pokémon Trainer. In simpler terms, you need to complete the main storyline of Pokémon Platinum.

This means you must:


1. Defeat the Elite Four and the Champion: Prove you're the strongest Trainer in Sinnoh by conquering the Pokémon League.
2. **Obtain the Pokédex from Professor Rowan:** After becoming the Champion, Professor Rowan will upgrade your Pokédex, acknowledging your accomplishment and your readiness to encounter a wider range of Pokémon.

Once you've achieved these milestones, your Pokédex will be able to register any Pokémon from generations 1-4, regardless of whether they're found in Sinnoh. This effectively unlocks the National Dex functionality within your existing Pokédex.

However, don't think for a second that simply unlocking the National Dex means you've seen everything. Oh no, there's much more to discover! The true challenge lies in completing it, and that requires a different level of dedication:

* Trading: Many Pokémon from previous generations aren't found in Sinnoh's wilds. You'll need to trade with someone who has a copy of Pokémon Diamond, Pearl, or another compatible game to obtain them.
* **Exploring the Palantine Region (Post-Game):** After becoming Champion, you can access a new area called the Palantine Region. This region offers opportunities to encounter and catch some Pokémon not found elsewhere in Sinnoh.
* Events and Special Encounters: Keep an eye out for special events or rare encounters, as some Pokémon might only be available through these limited-time opportunities.

Remember, becoming a true Pokémon Master isn't just about being the strongest. It's about knowledge, understanding, and catching them all!

Good luck on your journey, Trainer! And if you ever have any questions about Pokémon, don't hesitate to ask.

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AnswersAfter you see all 210, go to see Rowan. I believe he gives you the pokeradar. ... To get the national dex do the following. ... To get the national dex do the following: ... You need to (at least) see all 210 Sinnoh Pokemon, defeat the Pokemon League (E4 + Champion), then talk to Prof. ... Hey guys!read more >>