Pokemon Diamond and Pearl hacks

Try the links in the expert answer section above (if it is visible), and the related links section if you can find those. You can also search with any search engine.

I would advise that you copy the codes and paste them onto the code manager for Action Replay on your computer rather than doing it manually, and of course, only use the codes you think will work and such.

You can learn to hack various Video Games for pretty much any console, at GameHacking.