Aurora puts NES, GBC, GB, SMS, and GG games right in your pocket. No longer will you have to worry about finding a signed app to download that could be revoked at any time. Web-based emulators are now the future.
Have fond memories of playing Super Mario Bros. 3 with a second controller? Aurora supports switching to second player controls so you can pass your device to friend for their turn.
Adding cheat codes from the settings page allows you to have infinite lives, invicibility, and more. All original Game Genie codes work!
Aurora equips OpenSkin to allow for full customization. Existing skins from apps like Eclipse and Mojo will work along with Aurora.
On the main screen, press the + button and then sources. Choose a ROM from the list to add to your library. For legal reasons, you should only run ROMs that you own a physical copy of.
Audio currently doesn't work on iOS, due to the core(s) not supporting it. A fix will come hopefully in the future.
Due to iOS Safari limitations, storage is very limited. A whole ROM takes up too much storage, so it can't be saved to your library.
Again, this is due to Safari's limited storage. A save state takes up too much storage to have more than one. This is also why some games can't save. They're too big.
Making a source is very simple! You'll just need a website to host a json file. Check out this page for more information.