I hope my post didn't seem like I was for or against this in anyway. Llike lordmonkus said this is going to be very niche. I was just questioning the logic of the response. I just tested this if you go to the add button and add a game and put in the games url the page will launch from LB now all you need to do is is figure out how to pass the button presses to start the game and make it go full screen which I'm sure is possible but I don't know how to do it but that would allow you to play it on the browser and not using any of your emulators which is a little different from what you are asking