Feature list
The following list contains possible features which would enhance emulators:
Rewind
The Rewind feature lets you rewind your game during game-play by the press of a button. The most popular example of this feature in commercial games was Prince of Persia with its "Sands of Time" feature.
Mirror
The Mirror feature lets you play the games mirrored, so that if you're used to play a game from left to right, it's right to left now.
The features list could increase with your help! Which features could you imagine that would further enhance emulators? Write an email to newfeatures (aet) mk2k (d0t) net