It depends which one are you talking about the older 2or one of the three newer ones
if you mean wonder mail enter it at the main menu go to and select wonder mail
there is no password
Go to the opening menu then go to Wonder Mail. After that enter the password like it tells you to. :)
You cant enter cheats on Pokemon Diamond, the only is on a game shard or by mystery event maybe.
yes some dungeons you can't enter but if you rescue scizor from froslass (crevice cave) you can get to all mystery dungeons
wonder mail is for Pokemon mystery dungeon as far as i know.
There isn't any cheats for PMD. The only way to cheat is via Action Replay which is purchased at any participating stores that hold DS software/games.
Firstly, you must start the game of course. Then you must turn on the game. Start a new game, and there you go. Voila! You started the game Pokemon Mystery Dungeon Explorers of Darkness.
Go to "wonder mail s' and press password.
erm u get the Pokemon mystery dungeon blue codes with action replay :D
you go and visit your freind Pokemon talk to it, say stand by then you can do it.
it should but you have to enter everything yourself.