Some people with NES/SNES joypad adapters have reporting having problems with the 2nd joystick button reader, so I've added [F3] key to disable the 2nd joystick button reader code. I've also updated the manuals for this.

NB: If you are not having any issues with the 2nd fire button reader, this release is not required.

NB: if you're saving to cart, don't use this update without first saving your progress to disk (so you can load it back from disk), otherwise the new version will overwrite the save games on the cart image and you'll lose progress. For people using TheC64 mini and save states, it's best to continue with the current version of the game (unless you want to start again) as progress will be lost.