A hacking tool to view, convert and edit NDS game files, similar to other programs out there like CrystalTile. It's written in C# with NET Framework 3.5, so you'll need 3.5 installed to run it. All the code is Open Source hosted on Google.
Changelog (25/09/11)
*** BTX0 textures supported (view only) ** Game 999HRPERDOOR (Nine Hours, Nine Persons, Nine Doors) supported - SIR0 files in folder /cha ** Game EDGEWORTH (Ace Attorney Miles Investigation) supported - Unpack and pack support to the file romfile.bin ** Improved Image plugin: import and export palette in Window Palette format * Improved plugins NARC and LASTWINDOW, now the extract function is faster * Added multifile importer function * Improved plugin Font - Added support for encodings shift-jis, unicode and unicode bigendian - Select char from the map char image. - Support for rotateMode value. * Improved plugin SDAT - Compress imported audio with PCM8, PCM16 or IMA-ADPCM - Fixed problems importing new SWAV and STRM audio - Improved PCM8 codification. - Select loop start with Seconds, MilliSeconds or Samples * Improved french translation by Valioukha * Fixed problem saving new NCGR/NCBR files * Fixed reading problem in NCER * Supported NCER files with 0x04 as blockSize * Fixed problem with "Change transparency color" in NCER files * Fixed hotkeys * Fixed important bugs