An emulator is a software that acts as a virtual console in your computer.
You can use bsnes emulator for running Super Mario World ROM. It is lightweight, portable and doesn’t eat up RAM like any other emulators.
Above all, it is distributed free. Bsnes runs games developed for Super Nintendo Entertainment System(SNES) and Super Famicom Nintendo game systems and doesn’t lag in FPS.
This tutorial will guide you through the process of downloading and running an emulator. There are various emulators but bsnes stands out among all.
Then unzip the file using any file compressor
First, download bsnes
Now launch bsnes
Click on Load and then Super Famicon
Select the extracted game
The game will load
Enjoy the game