There are many ways to find Pokemon in Diamond and Pearl rather than just finding them in the wild. Here are the main ones:|
After beating the Elite Four and obtaining the National Dex, you can head to your rival's house in Sandgem Town and speak to his/her little sister. She'll tell you that a specific non-Sinnoh Pokemon is swarming on a particular route that day. By travelling to the specified route, you will be able to find the swarming Pokemon, which will generally be relatively common, and catch it. There is a new swarm each day.
Migrating from GBA Games
Another way to obtain non-Sinnoh Pokemon is to transfer them from a Ruby, Sapphire, Emerald, FireRed or LeafGreen gamepack. In each of these games you must have beaten the Elite Four before you can migrate. You must also have beaten the Elite Four and receieved the National Dex on Diamond/Pearl. You may only migrate 6 Pokemon a day to Diamond/Pearl from any gamepack. Once migrated you will be able to search for and recapture your Pokemon in Pal Park on route , using special Park Balls which have the same catch-rate as a Masterball (100%). The only downside to Pal Park is that you cannot transfer Pokemon back to your GBA games, which means you must be sure about which Pokemon you're going to transfer over.
*Note: Pokemon that evolve through trading will not evolve when you transfer them to Pal Park as this is not considered a trade.
Pokemon Mansion is located on Route , south of Hearthome city. Once you've defeated the Elite Four, you can speak to the owner of the Mansion in his room each day and he'll tell you about a different rare Pokemon he has spotted in his Trophy Garden. The Pokemon change each day, and come sometimes take a while to find as some of them are quite rare.
Here are the available Pokemon:
Bonsly (Pearl Only)
Mime Jr. (Diamond Only)
Using the PokeRadar
Some Pokemon in Sinnoh can only be found using the PokeRadar, which you receive from Professor Oak after getting the National Dex. Sometimes when using the device, you will locate a patch of grass with golden sparks. This means that a rare non-Sinnoh Pokemon is hiding there. These patches can be found at any time, and 'chaining' does not increase your chances of finding one.
Click here for a list of Pokemon available through this method and their locations.
Having a GBA game inserted
The final special way of obtaining Pokemon in D/P is by use of the GBA Pokemon games. Having a certain gamepack inserted into the GBA slot in the DS which playing Diamond or Pearl will cause Pokemon native to that region to appear in Sinnoh. Here is a list of the available Pokemon through this method:
With FireRed inserted
Caterpie - Route 204 (South)
Metapod - Eterna Forest
Ekans - Route 212 (South)
Arbok - Great Marsh
Growlithe - Route 201, Route 202
Elekid - Route 204 (South), Valley Windworks
With LeafGreen inserted
Weedle - Route 204 (South)
Kakuna - Eterna Forest
Sandshrew - Wayward Cave
Sandslash - Route 228
Vulpix - Route 209
Magby - Stark Mountain, Route 227
With Ruby inserted
Seedot - Eterna Forest, Route 203, Route 204
Nuzleaf - Route 229
Mawile - Iron Mountain
Zangoose - Route 208
Solrock - Lake Verity Surroundings, Lake Verity, Lake Acuity, Lake Valor, Mt. Coronet, Spring Path, Turnback Cave
With Sapphire inserted
Lotad - Route 203, Route 204, Route 205 (North), Route 212 (South)
Lombre - Route 212 (South), Route 229
Sableye - Iron Mountain
Seviper - Route 208
Lunatone - Lake Verity Surroundings, Lake Verity, Lake Acuity, Lake Valor, Mt. Coronet, Spring Path, Turnback Cave
With Emerald inserted
Pineco - Eterna Forest, Route 203, Route 204, Route 229
Gligar - Stark Mountain, Route 206, Route 207, Route 214, Route 215, Route 227
Shuckle - Route 224
Teddiursa - Route 211, Lake Acuity
Ursaring - Lake Acuity, Route 216, Route 217
With any game inserted
Haunter - Old Chateau
Gengar - Old Chateau (Room with the painting with red eyes)