Quote:I figured it out. you have to enable the controller port.
Go to the config tab.
Select Gamecube tab.
Click Port 1.
Enable Standard Controller.
No dice I'm afraid

I opened up the tab to see that enable standard controller is already selected but it's still not taking the inputs.
-EDIT-
Worked it out, turns out it was as simple as the game I was testing not supporting GC pads
I'm such a mook.