If you are using mame, it is as simple as going into the analog tab control and reversing everything. If this is going to a real arcade PCB, well then you will have to cut or move the wires. And I will actually have to take my U-Tarck apart as well, as I will be changing it from arcade pcb control to USB control for mame, it's a PITA but if you do it right, it will only have to be done once. I really like this trackball, my wife and I have punished it playing World Class Bowling Deluxe for months without any issues at all.