When I play the game using analog control in FB Alpha(e.g. Night Striker) I press the stick the right-end, it goes the right but eventually the left-end. (It’s same in press the downside but eventually up)
It seems like ‘overflow’ of analog axis.
It isn’t found in MAME cores and standalone FB Alpha program. Only in fba libretro core.
(used Windows 7 x64 + Xbox One gamepad)