You need to use a No$GBA Emulator for this ROM. But there are still some bugs with the saving option and sometimes the emulator will close. But if you want to try you can download here. I tried it but sometimes it crashes while I played.  Let’s just wait for the release of a better emulator but for now you can try and enjoy this. If you are patient you will see the newest set of pokemon of the Sinnoh Region from the Pokemon Diamond and Pearl Season.

Pokemon Diamond and Pearl     

No$GBA Emulator - Download     GBA ROM - Download

For any comments, message me if their is an error in the download..u