It looks like a great demo hack proving that resources and AI can be copied or rebuilt from the original GBA and brought onto the SNES cartridge and includes level editing.
In many ways it is not nearly as good as "Metroid X-Fusion" being developed by Metaquarius.
https://www.youtube.com/playlist?list=PLZS_o9tqWHmJHGmuQRRkfiqhgZIApfLXM