yes. only one though:
Game ID: AIYE-BDF15C94
Max/Infinite Cash
020c4ab0 000f423f
Source: Codejunkies US
Page: http://us.codejunkies.com/search/codes/InuYasha--Secret-of-the-Divine-Jewel_Nintendo-DS_17826093-17___.aspx
You can't get the Secret Key in Pokemon Platinum without Action Replay, unfortunately. You can get Action Replay from most major websites.
no
An action replay code if you have action replay. Otherwise, it's impossible
Just Google Action replay For secret key or something.
by action replay
lucario
mystery gift or action replay.
there was an event for it but it is gone. you can also cheat. (action replay)
You Need the Action Replay 3 and visit Game FAQS and You'll found your Secret ID
NO NO NO NOO
I read on N-philes.com that there are codes to enter using a 'Gameshark' or 'Action Replay' device. Some of the codes are listed on the site.
try using a secret key which you can get with action replay