In my opinion the best joypad ever made is the original SNES controller by Nintendo. It features good handling and its 8 buttons are easy to "find" after a short time. ninja/dreams 1997-98

So, what about eight (8!) SNES–controllers with all their buttons on your joyports??? Yes, the userport remains free, just the joyports. And in addition to that you won't need too much hardware either, because what you have to build is more like a cable. Now, how does that work?

It is not too complicated, it's just that you have to know how these pads work (and Nintendo is neither famous for giving information nor for accepting any kind of standard). At first I will tell you what pin does what job. Keep in mind that pin A is the one at the flat end!

That is an excerpt from the 1998 documentation by ninja/dreams on how to wire up 8 SNES controllers to your C64. The SUPER PAD 64 is a commercially available product that embodies this documentation in a solid beautiful package and distributed by Poly.Play.