SNES9x
A great SNES emulator for OS X
SNES9x logo
SNES9x is a free and full-featured SNES emulator for OS X, and this page will help you find and install it!
Quick Links
Download & installation instructions
Head to one of the above download mirrors and download a file called something like snes9x-1.xx-macosx.dmg.gz:
A section of black-ship-net's SNES9x download page
Extract SNES9x.app, move it to your Applications folder, and you're ready to play SNES games on your Mac!