I felt that was necessary.
Yes, this is, in my opinion, the hardest level of the series.
It's also pretty large and....
well, somewhat mind boggling.

The plus side to this is that it's mostly springs,
and there aren't many other features like ice involved.
In addition, I couldn't even first do this without a map.

However, I've replayed it enough times to do it right.
I hope you enjoy!

Here is a video solution to it.