2 ways
AR or Luck
you can catch a shiny in diamond pearl platinum or any other game but they are 1 in about 8000
I do not know about an action replay code for Pokemon Diamond involving shiny pokemon, and if there was one, which I highly think so, there would be a code at "www.codejunkies.com". Other than that, oh well!
What do you mean how do you make a shiny Pokemon stay shiny if you get a shiny Pokemon it stays shiny ok!
W5g99dfh447uu
yes, shiny Pokemon will stay shiny forever, even if they evolve.
Shiny Pokemon can be anywhere, it is just very rare.
No
What you are saying is the "Permanent" shiny Pokemon code, which is not available, but the code for temporary code is available. Go onto a website to look for codes like the "shiny" code or onto Youtube.
luck You CAN get shiny Pokemon WITHOUT a full Pokedex(I have done it :P)
To get a shiny Pokemon try using the poke radar
Once you find a Shiny Pokemon just catch it and it remains Shiny forever.
They should be shiny.