User blog comment:Ancy/Rollercoaster: The Musical! Reception/@comment-1896159-20110131211152/@comment-2010808-20110131222534

While they did re use animation, it's not like they had a choice. You can't do the same episode twice without re-using animation. Plus, the antmiation is actually updated. If you compare an re-used shot to the orgnal shot, it looks loads better.

I did expect it to re-use animtion and stuff, but they also built on some jokes, and used some thigns from the orginal pilot version