User blog comment:IceSeason101/Unlockable games that should be in Sonic Generations/@comment-3990769-20110515194555/@comment-2058197-20110515194743

Look at the full list. It's other characters from the series in classic games. I was making this like Sonic & Knuckles had Knuckles in Sonic 2. And do agree on the Shadow and Rouge in Sonic 2 thing?