No you may not use Pokemon platinum cheats on diamond or pearl. The storyline is totally different! This doesn't include action replay!
yes
No, you can't. Codejunkies has to create different cheats every game. If you want to get Pokemon on Platinum, then use the Platinum version of Pokesav.
trade from diamond pearl or platinum other than that just use cheats
you do not catch purge in diamond pearl or platinum. Purge is a fan created pokemon.
you can not get the azure flute in pokemon diamond, pearl or platinum unless you use cheats like action replay
Its hard to get shiny Pokemon but the best way to get shiny Pokemon without cheats is to use a poke radar in Pokemon diamond and pearl or platinum.
You have to trade it from another Pokemon Pearl, Diamond or Platinum game, or use cheats.
there is no more masterballs in Pokemon platinum but not if you use cheats
Use an action replay...
No but I do believe you can use on Platinum,Diamond and Pearl at Sky Pillar but it will not work if you have 5 or more cheats on your game.
yes you can use action replay on Pokemon platinum
you Google cheats for Pokemon diamond and something will pop up