Save fix:
you can save the game on flashcarts and simulation (tested on no$gba and desmume)
some research were from RetroGameFan (link: https://gbatemp.net/threads/retrogamefan-updates-releases.267243/ )

• NOTE: you must create a sav file with all zero-filled before you start the game!
  

Wireless keyboard:
you can play the game by using computer keyboard and other smart device such like iPad,
It requires a special dswifi library (https://github.com/enler/dswifi)

Get Screenshots of top screen:
you can get Screenshots by using PrtSc key!

About *.3ps files:
you can use *.3ps files and 3dstool (https://github.com/dnasdw/3dstool) to patch roms, it's very useful :)
usage : 3dstool --patch -vf input.bin --patch-file patch.3ps

• Do not forget to use ndstool to fix the crc16 after you patch the rom. (ndstool -f "your rom")
  go to "Release" folder for more informations