Ok guys, I manage to map the Wiimote, so you could use this, if you don't have a Classic Controller
Check this
bolded line in your gamelist.xml in the same folder where you store your games.
/rom1 MetalGear2-SolidSnake.zip
MetalGear2-SolidSnake-1.png
MetalGear2-SolidSnake-2.png
replace the bolded line for this line
Your new gamelist.xml should look like this
/rom1 MetalGear2-SolidSnake.zip
MetalGear2-SolidSnake-1.png
MetalGear2-SolidSnake-2.png
There you go, this config is best suited for Metal Gear games, you can change the Wii controller configuration button as you wish, assinging keyboard keys.
plus1 (''plus'' button on the Wii controller 1)
minus1 (''minus'' button on the Wii controller 1)
button11 (''1'' button on the Wii controller 1)
button21 (''2'' button on the Wii controller 1)
buttonA1 (''A'' button on the Wii controller 1)
buttonB1 (''B'' button on the Wii controller 1)
NOT TESTED
plus2 (''plus'' button on the Wii controller 2)
minus2 (''minus'' button on the Wii controller 2)
button12 (''1'' button on the Wii controller 2)
button22 (''2'' button on the Wii controller 2)
buttonA2 (''A'' button on the Wii controller 2)
buttonB2 (''B'' button on the Wii controller 2)