Okay, so i am planning on picking up an FC Twin for my collection and so that way i can conveinently have an NES and SNES out at the same time without the need of both my systems out at the same time. In the past, i have heard of mods that people have done to other clone consoles to improve them, and i was wondering if their was any mods in particular that i can do to the FC Twin to improve it aswell. My goal is to at least restore MMC5 compatibility (i have heard it was possible with Retron1/Yobo FC NES Clone consoles) and to add famicom audio to it. Any other mods would be nice, but these are the main two i want to know about. Any help and information is appreciated!!