NesBox is one of the most complete emulators of video consoles out there. It covers multiple platforms and can successfully emulate GameBoy Color, GameBoy Advanced, Sega Genesis, Nintendo Entertainment System and Super Nintendo. It will work on any computer running Windows 8.1, RT or Phone. You might as well run it directly through a browser, which is a serious plus when compared to other browsers. The emulator is available for free.
You have the opportunity to search games and ROMs over the Internet, as they are not included in the package. You do have a library of a few games though. Other than that, it supports multiple file types, a touchscreen game pad, Xbox 360 controller support and the possibility to setup screen game pad buttons. You can also save or load your games and continue with the progress without starting all over – enjoy the magic of the 20th century.