I’m trying the puzzle levels now. The first three didn’t give me any real trouble, but the fourth is very hard. It’s very similar to level eleven of the Treasure’s Best section – picking a path through falling blocks, many of which are indestructible – but much harder, in that there’s no obvious path through. Every time you move near the start there are many moves that won’t result in instant fail, but I assume there’s only one move at each step that’s correct. I’m having a hard time and may just move on without finishing this one for now.