Classic controllers have a similarly easy setup - plug them in and map their buttons and you should be set. You just need to open the flap, plug one in, load up your favorite emulator and point it directly at the USB drive's images. The Retrode 2 simply acts as a mountable USB drive that provides direct access to the ROM images stored on your cartridges (including the save files, if available). The latest iteration of the aptly-named Retrode aims to solve that by providing a hardware solution for hooking up SNES and Genesis cartridges and their associated controllers to your PC via USB. Playing classic games on your PC or Mac has traditionally required four things: emulator software, ROMs (of perhaps dubious origin), button mapping to a keyboard or controller, and the subtle, sinking feeling that while you're going a little retro, you're not going retro enough.