You have all but one Pokemon in Pokemon Diamond and Pearl. This Pokemon is Manaphy, which can only be obtained by owning a copy of Pokemon Ranger. If you press the right buttons and use a code, you too can have a Manaphy egg.
Steps
Step 1. Insert the Pokémon Ranger cartridge into your DS system and turn it on
Step 2. Complete the Continuous Missions in Pokemon Ranger
Afterward, you should notice a new entry on the title screen; Ranger network.
Step 3. Press and hold the R, X and left buttons
Enter Password will appear under "Select mission". Press that voice.
Step 4. On the Enter Password screen, type Mg35-Cpb8-4FW8 if you have a European cartridge
- P8M2-9D6F-43H7 if you have an American cartridge.
- C58f-t3WT-Vn79 if you have a Spanish or Portuguese cartridge.
Step 5. On the Select Mission screen, choose "Save the Precious Egg
".
Step 6. After completing the mission, Check Egg will replace Enter Password in the Ranger Network menu
Step 7. When ready, enter Pokemon Diamond or Pearl in a second DS
Turn it on, and go to the Main Menu (Continue, New Game, etc.).
Step 8. In Pokemon Ranger, press "Check the Egg", and press the screen
Then, press 'Send Message', and bring the 2 DS closer together.
Step 9. In Pokemon Diamond or Pearl, a new screen will appear
From here on, follow the instructions provided.
Step 10. Congratulations, you have a Manaphy egg in your version of Pokemon
- To make it hatch, go to any PokeMart in the Sinnoh region and talk to the man in green. He will give you the egg (as long as you have a free spot on the team).
- Walk approximately 2740 steps. The egg should hatch.
