I made a port of Frodo(Commodore64 emulator). It's based on Wiz port(based on GP2X port(based on ...)). So, all of platform dependent code are mess.. That's why i need beta testing of this port! I can't improve quality of emulation, but i can improve port stability.
Try images of D64 format! I don't know can it handle other types of images or not.
Sometimes pressing left stick causing volume down - known issue.
Here it is!