User blog comment:Pikatwig/Most Burning Way Past Cool Sonic games and my reasons/@comment-115265-20120127115113

I'm actually glad they put in Crisis City in the 360 version of Generations (never played 3DS). Of all the levels in 06, that was the best in my opinion. And the polished gameplay of Generations made it even better.

Kind of confuses those (such as myself) who are familiar with 06's story. Crisis City should have been erased from the timeline... Then again... that explains it's existence on it's own.