Hardest Level of the Whole Game?

What, in your opinion, is the hardest level in the game? Is it the most fun? Or is it just plain annoying and you die every three seconds? Either way, post your reply here to tell me what you think.

I think that Egypt is the hardest level. I don't know what it is about it. I kept dying, jumping off of cliffs, and just plain out failing. I had no idea what to do. I had to look at a walkthrough and I finally got it. It was a lot of fun once I knew what I was doing, though.