Snes9x Emulator

I recommend using the snes9x super nintendo emulator. I have used the snes9x emulator for quite a few years and enjoy it. It is jammed packed with wonderful features and even has support for gameshark and pro action replay codes. You can download this free emulator here.
http://www.snes9x.com/downloads.php

Snes9x is a portable, freeware Super Nintendo Entertainment System (SNES) emulator. It basically allows you to play most games designed for the SNES and Super Famicom Nintendo game systems on your PC or Workstation; which includes some real gems that were only ever released in Japan.Snes9x is the result of well over three years worth of part-time hacking, coding, recoding, debugging, divorce, etc. (just kidding about the divorce bit). Snes9x is coded in C++, with three assembler CPU emulation cores on the i386 Linux and Windows ports.
Currently there are many ports of Snes9x available, please check the download page to see if a port exists for your system.