If even you still own an old Sega console, the chances are you haven't played it in years. Luckily, a number of the company's most popular games, including Sonic the Hedgehog, have been ported to modern app stores. That means you can get your gaming fix, even if it is on a mobile device. If you've already downloaded or are tempted to buy Sonic the Hedgehog 1, Sonic the Hedgehog 2 or Sonic CD on your iPhone or iPad and own the new Apple TV, we have some good news: you'll soon be able to play them all directly on the box for the very first time.