 With the Super Game Boy adaptor, Game Boy cartridges can also be used.It features a single-pole, double-throw power switch with open position; the switch can be thrown to 8-Bit (NES) or 16-Bit (SNES), or set to off.Second-generation NESes also used a card edge connector and featured no 10NES lock-out chip; however, unlike the top-loading NES 2, the FC Twin is completely compatible with the Galoob Game Genie without the use of an adapter.