Sunset Riders was never released on the Super Famicom.
People have made release lists and one person/group (at least) have even made videos compiling gameplay footage from every game in the library. No Sunset Riders.
It's like 20 years later, if it was out on such a popular console we'd have heard of it by now.

If anyone played it on a Super Famicom, they probably played a bootleg.