Sega has released an updated and remastered version of Sonic the Hedgehog 2 for iOS, adding iPad and iPhone 5 support, in addition to a new Boss Attack Mode and a new online 2-player mode. The update is free for current owners of the game. The game is a faithful recreation of the classic Sega Genesis title, but adds a secret zone called the Hidden Palace that was removed from the original game. The game was made by the same team that released the Sonic CD iOS-port previously. Our sister-site TouchArcade has more: Just a quick heads-up to let you know that the Sonic The Hedgehog 2 [$2.99] remastered upd