People are always going on about how this is a truncated game, and that Mean Street was meant to be made a whole by the end. Well, I found this little number: http://www.youtube.com/watch?v=c0diw7BbQIg
It's the ending, so obvious spoilers, but: watch when Mickey takes a bow at around 3:06. What's that in the background? A reunited Mean Street! It also looks pretty whole behind the Dragon as well. And surely you'd need a street WITHOUT deadly cliff edges and deathpits in the ground for a parade?! What are those Gremlins on?!
Additionally, look at the castle when the fireworks are going off - hey, wasn't that ravaged before, as this: http://tinyurl.com/bafppmn concept art shows? It's suddenly mended! Heck, the first stage is all about escaping BEFORE it collapses!
Either some weird, time-altering paradox occurred during the ending, or something's amiss here....