The SEGA Genesis, with SEGA CD attachment, on top of the Genesis is the SEGA 32x expansion, on top of that is the Game Genie cheating code device, on top of that is game Sonic and Knuckles, and on top of that is the game Sonic the Hedgehog 2. When said items are combined in that order, the SEGA Sandwich is born.
Is Miles bringing the SEGA sandwich to the party? I hope so I'm hungry. You silly bastard, not a food sandwich, the utlimate SEGA device.