y, Snes9x Super Nintendo has just what you need.
Leaving the catalog aside, Snes9x is an excellent emulator. To start with, it requires no installation so you simply unzip the content into a folder and click on the launcher to start using it.
Once you start to use Snes9x, you will soon discover lots of options that greatly enhance the overall experience. These include things like the ability to save a game at any time, configure the graphics settings, and even save games easily with the push of a button.
For all these reasons, Snes9x is probably the best option for playing Super Nintendo games on a computer. Its interface is also far more accessible than most of its competitors, and lets you start playing seconds after being unzipped.