You have to get an AR (Action Replay) on Ebay it is about $20 for a normal DS one, but for a DSi one it cost about $46. Other than that the closest thing to cheats on Platinum are glitches...
type them in
yes. there are AR cheats for platinum.
no where
no.
you need to download your Pokemon platinum game into the R4 and add cheats in there . Go to Supercheat to find the cheats
there is no more masterballs in Pokemon platinum but not if you use cheats
You cannot get a Mewtwo in Platinum.
No there are not. larson
yes
No you may not use Pokemon platinum cheats on diamond or pearl. The storyline is totally different! This doesn't include action replay!
yes you can use action replay on Pokemon platinum
Use an action replay...