Is it just me or is it a transparent plastic version of a PS gamepad? Not even analog sticks supported? And then had the direction arrows replaced by that thing which should make it easier to play beat em up games with?
You can get those for the PS with black plastic and analog for about £10 around here. And the PSJoy converter works just fine for it supporting everything on it, even rumble.
Ahh missed the part about it being made for 8-bit machines. I quite like the design of the PS joypads so I think it would be quite good to play with on an 8 bit machine.