Console controllers on USB

[hemphacker]

Hey, I just got a SNES pad working on USB. I was wondering what other controllers used the 4021 chips. I know the NES and 3DO pads do, but are there any others. I think the Virtual Boy does, but I don't know this for sure. Controllers with these chips would be easy to add since I've already got the USB chip to handle the protocal for the 4021. Thanks.

[NFG]

The SNES + 3DO are the only two AFAIK.