Kind of neat, although I personally would rather use an NES controller to play Super Gameboy games. In case you didn't know, the SNES controllers shares the exact same controller protocols as the NES controller, making them literally interchangeable. On an SNES, NES A and B are mapped to Y and B. On the NES, a SNES controller A and B are the NES A and B. Both controllers even share the same colored wires!