Is it possible to back up games legitimately, so they can be retrieved off a computer even if the app is pulled from the store? How can it be done? I have a MacBook pro. Not really sure if this is the right forum section or not but it's about games and it's general so...
Very easy to do - open iTunes and make sure your computer is "authorized" this is under the "store" in the menu bar at the top. Connect your idevice - and do a right click on the device - there should be an option to transfer purchased items from the idevice to the computer. Do that, and you are done. You also can just d/l them from the iTunes store directly to your computer. Most of the time you will see a "download" bar where the price used to be in the iTunes store. Sometimes not, but if you purchased it, you should be able to d/l for free. Sometimes games change devs, or publishers though, so technically it would be a new purchase. Better to just do the transfer purchases.