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
*** Support for font files NFTR (edit and view) *** Support to write Game plugins in other languages (like C/C++) *** Interface to unpack "big files" *** Improved the speed of the program, now the program it's so much faster opening roms and files. ** Improved decompress methods, now it's so much faster. ** Improved SDAT plugin: - Information dialog about sound files (STRM, SWAV and SWAR) - WAV -> SWAV - Play SWAV files in loop - Create new SWAR - Fixed some bugs - Fixed important errors in SDAT plugin - Add "change volume" while importing WAV and converting to SWAV audio * Improved plugin TETRIS DS * New option in menu "Open as..." -> Compress (you can select the start offset) * New hotkeys (T to "Open as->Tile", P to "Open as->Palette", M to "Open as->Map", D to decompress) * New search term: "Length: XXXX" to search files with XXXX bytes of length * Improved "offset" in NSCR and NCGR files. * Command to set a new transparent color in NCGR and NCER files * Improved Images plugin and TGA support