Mostly I loved this, but that mirror puzzle killed me. My brain is not wired in a visual way; I can't manipulate images inside my head like that. :( I don't know if TWINE is capable of any better way of doing that puzzle, but the way it is was very frustrating for me. (I may be alone in this, though. Given the way certain people (like my parents) cannot grasp my mental limitations, I suspect they're uncommon.)