1. Encrypt the rom.
2. Put these files: Firmware.bin, NDSBIOS7.ROM, NDSBIOS9.ROM in the same folder as NO$GBA.
3. Go to the options of NO$GBA and put the "Startup" in "GBA Bios".
4. Re-start the emulator (with *)
5. Start the game with firmware, like a real DS.
6. Enjoy.
7. ????
8. PROFIT!!! xD
To Fidex: Yes, but you need to have too NDSBIOS7.ROM and NDSBIOS9.ROM .
