Instructions
Insert the Action Replay DS device into the cartridge slot on the Nintendo DS system. Attach the "Pokemon Diamond" game cartridge to the Action Replay DS and turn on the Nintendo DS.
Scroll through the list of pre-loaded games in the Action Replay game database until you find the game title "Pokemon Diamond." Select the game by pressing the "A" button on the Nintendo DS.
Click on the "Enter code" option at the top of the page and enter the following code in the space provided:
94000130 FDFF0000
B21C4D28 00000000
B0000004 00000000
94000130 FEFF0000
00000890 01ED0001
D0000000 00000000
DA000000 00000892
DC000000 00024620
C0000000 0000000B
D7000000 00000000
DC000000 00000006
D2000000 00000000
Press the "Start" button to save the cheat and launch the "Pokemon Diamond" game.
Load your saved game and walk to the nearest patch of tall grass or inside a cave where Pokemon roam. The next Pokemon you encounter is a wild Mew creature.
Battle the wild Mew until its health points grow weaker. Use a Pokeball to capture Mew and have him in your Pokemon party.