here you go Westy this is the site i first looked at when i started down the emulation route.
http://www.pocketgamer.co.uk/r/Android/Emulation/feature.asp?c=38947
Also this link my be helpful as well http://coolrom.co.uk/
https://www.amazon.co.uk/Bluetooth-...420&sr=8-1&keywords=moga+pro+power+controller
Picked up my controller for £24 from Game , but the above link is the one you want.
Have fun.
http://www.pocketgamer.co.uk/r/Android/Emulation/feature.asp?c=38947
Also this link my be helpful as well http://coolrom.co.uk/
https://www.amazon.co.uk/Bluetooth-...420&sr=8-1&keywords=moga+pro+power+controller
Picked up my controller for £24 from Game , but the above link is the one you want.
Have fun.