Sound would be nice, but I was able to map the keys however I wanted. Using my BT keyboard and the tab key, I remapped the keyboard however I wanted. I was able to play joust, zaxxon. I have a bunch of roms I am copying over now to test out. You can also remap the 770 keys using the keyboard to tab and enter.

This is awesome, I still want an NES, SNES SEGA. But this is cool!!

Good work man!!