Nitro Hax is a cheat tool for official games running on the Nintendo DS. It supports any Action Replay DS code type with a few important additions.

Release notes:

New release out today, version 0.92, available as usual from the NitroHax page on my website. For an extra special Christmas present (continuing the tradition), you can has sauce with your codez.

This release fixes Pokemon Diamond/Pearl, and incorporates some improvements to the cheat engine as suggested by Normmatt.

Now before anyone asks, I am releasing source now because circumstances have changed. Practically all flash cards support AR codes now, either through ripped-off engines or ones they’ve written themselves, so there’s no point keeping that secret any more. I would love to release the card reading functions too, but unfortunately I’ve been informed that they’re actually covered by a patent. This means the BootLoader won’t build completely from the supplied source, but a compiled copy is in there already.

Discussion: http://forum.gbadev.org/viewtopic.php?t=12622

Thanks to http://www.nintendomax.com for the news.

http://chishm.drunkencoders.com/NitroHax/index.html