Famicom in a controller model, similar to the Superjoy, Play Power, and ten thousand other clones. The two additional buttons are A+B and A+B turbo, cart slot on the bottom, 2nd player port on the top, runs off off two AA batteries or AC. The "Analog stick" is just a piece of plastic that does nothing.
I've acutally got a clone like this and I've got to say that it's not half bad. Really cheaply made, but unusually resiliant for a pirate piece of junk.