Yeah, I don't get the rule change. I'm on level 3.4, and I've got all but one coin in the right place, but it won't let me put the last coin in the right place and I don't understand why not.
I get that the 'disobey' world is supposed to be beautiful and colourful and such, but I actually found it quite ugly. While I found that the 'obey' world was actually quite pretty and full of detail... I hope that says nothing negative about my personality. :-p
... You honestly want me to do the 40 levels on par TWICE just to get the bonus levels? No. That's not a matter of difficulty, you're just being moronic.