I did the same thing, but have it working. Looking forward to playing this game for the first time!
I'm using the old hakchi 2 (not ce) with retroarch to run this game. Try downloading retroarch with a snes9x core. I'm pretty sure you still need to add '--retroarch' at the end of the command line to make retroarch run it on the ce version. If I'm wrong, just look up how to use snes cores with retroarch in hakchi 2ce. Have another go, it's definitely possible. Good luck!