I think it’s ~ by default. I have snes9x for Windows and it has fast forward. Press the tab button it goes fast, press it again it goes to regular emulation speed.

How can I speed up my Snes9x?

Go to Emulation>Settings and change the Skip Rendering to a lower value, I recommend 7-12 for a reasonable fast forward speed.

Does Snes9x have fast forward?

I think it’s ~ by default. I have snes9x for Windows and it has fast forward. Press the tab button it goes fast, press it again it goes to regular emulation speed.