The following will allow you to play S.N.E.S. games on your P.S.3 console
First, you must download the game .pkg file, and implement it to your P.S.3 console
Click HERE for the download.
Second, you must download the emulator .pkg file, and implement it to your P.S.3 console
Click HERE for the download
Once you have completed those utterly simple tasks, open the emulator, and then locate your ROM game, which will be normally in the game folder
Just find it in the directory, and the game will automatically begin.
Enjoy! - The game is Super Mario World