The gamepads controls can be changed by selecting different buttons or keyboard keys as per our interest. Well if we assume we have selected Nintendo NES as our console, then it would look something like the below image. You simply have to install new game ROMS to play new games and with a compatible gamepads, game control. You can easily add new games and organize them using the game ROMS which we can download from online for free. Well I was really impressed with that number of gaming console but under each console we can find more number of games. It is because when I installed this OpenEmuon my MAC, I opened it and found a list of gaming consoles on to the left sidebar. I was wondering this game system would have just few games but I was really wrong. This game system namely OpenEmu lets MAC users use different console and play game easily using their particular gamepads.