price: 49 USD platforms: C64,C128
Keep one joystick plugged into both ports
Switchable between port 1 or 2.
Or, plug in a Sega Genesis/MegaDrive controller and take advantage of 8 button madness, including rapid, automatic, and alternate port fire, and a button for UP!
Find out more / buy at: https://store.backbit.io/product/genassister/