@Typhon I didn’t have a lot of choice since they are different key bindings depending on what controllers you use (though P3/P4 only support standard controllers) And yea, the NES supports a ton of input devices: https://wiki.nesdev.com/w/index.php/Input_devices#Hardware
(Edit: Forgot to say, the fds fast forward issue should be fixed in the next build)
@Tatsuya79 Thanks for pointing that out, I didn’t realize the shaders expected a ~600x240p picture. Is there even any reason reason to keep the doubled output at all? If not, I’ll just have both NTSC filters output in 240p with whatever horizontal resolution they have and let RetroArch take care of the aspect ratio. This would probably allow the core run a bit faster when using those filters, too.