The NEC TurboGrafx-16 Controller

As the first home console to claim to be 16 bits, you might expect innovations in the controller. Well, other than having a slightly more modern style, the TurboGrafx-16 controller seems to be pretty much a straight copy of the Nintendo Entertainment System controller.

The only change is the addition of two turbo switches. These switches enable or disable slow and rapid autofire functions to the I and II action buttons.