There is currently a emulator on the App Store though due to Apple back history, it won't last very long. My advice is to download as soon as you can. The App goes by the name of "Gridlee". It is a free app. Desquised as a normal, non profit application, it has a hidden folder inside that can be accessed by a number of programs. This folder is called "roms" and sure enough, if one drags more MAME roms into it, it (they) will run. Once Gridlee has roms inside it will put up the menu of MAME4iOS and, apparently, is more powerful. http://toucharcade.com/2013/01/26/mame-is-back-in-the-app-store-for-now-with-gridlee/ Go download this app! NOWWW!!! Some software a that can be used to access these files are: iExplorer, iFunbox, DiskAid, and more. Where you got the roms is your business. I will not point to any links except the source. Search a YouTube video on how to do this.