It wasn't square and boxy like the NES and Master System controllers but had a rounded, ergonomic shape which was more comfortable to hold, and it had one extra action button. Bliss! However ...

This USB controller is officially licensed by Sega, and not only is it compatible with the Sega Genesis Mini, it also works on PC, Mac, and whatever Raspberry Pi emulation machine you've cobbled ...

Update: A Nintendo spokesperson explained the decision to release the three-button Sega Genesis controller in North America instead of the six-button controller. "For the U.S. and Canada ...