Fans of vintage arcade games know that the popular and free emulation tool MAME (stands for "Multiple Arcade Machine Emulator") can be used to recreate the experience of classic coin-op and console videogames on PCs, Macs and jailbroken iOS devices.
The catch, of course, is that in order to run the old games you need a copy of the game ROM code; said copies are essentially unavailable via legitimate licensing (except for a few Exidy games). The other catch is that full-scale emulators aren't particularly welcome on the iOS App Store; the ones that