Goomba Color, GB/GBC emulator for GBA

Goomba Color, GB/GBC emulator for GBA
* https://www.dwedit.org/gba/goombacolor.php
* https://github.com/Dwedit/goombacolor
* https://gbstudiocentral.com/tips/the-goomba-color-emulator/
Warning: I couldn't find source code for the included ROM making program (Goomba Front), but developer claims that the GBA ROM containing the GB roms could be made just by concatenating files.