At first I enjoyed this game (the iOS version). It got me into Sonic for the first time and I thought it was really cool, although the stage designs were annoying later on and the bosses were way too easy. Then, I started to not really care for it. When I turned the game on, it was usually just to listen to one or two songs from the soundtrack. I thought the time-travel mechanic was done poorly and I was bored of the gameplay. Later on, though, I downloaded it onto the Kega Fusion emulator, and that was when I started to enjoy it. For all the people who think this game is hard: It's only hard if you are trying to make a good future in each act of each zone, one at a time (level select obviously helps.) I had fun with it, it demanded a lot of practice (yeah, I hated those special stages at times, but they're nowhere as bad as Sonic 2's), and I enjoyed the extremely overrated (but still cool) JAP music, although I didn't care for the US soundtrack. Overall, it was a very good, if not great, 2D platformer. Nowhere remotely near Mario, but still very entertaining and challenging.

"You can't do anything, so don't even try it. Get some help. Don't do what Sonic does. Sonic, dead or alive, is m-m-mine." -Eggman

http://www.youtube.com/watch?v=Q2w2v_kgzWo