Thanks for pointing out. I'll look at it when I have more time. Can you tell me which games require 6 buttons?
Off the top of my head, Street Fighter II Special Champion Edition, Eternal Champions, Mortal Kombat...heck, any of the fighting games, practically
Also, while I have your attention (and this will probably be the most selfish request ever): would you mind looking at implementing a second controller on one system? The reason is that one particular Master System game, Cyborg Hunter/Borgman, requires a second controller to enter its in-game submenu, which no other emulator on the 3DS has been able to do so far, I believe.