Thank you very much for your review!
Our music artist is very happy that you liked his songs :)
We didn't finish another 20 levels with... alternative "alternative" control. Hopefully, we will add it in the next patch ^^
Ye, some levels turned out a bit tricky, and few of them have only 1 way of solving.
We plan to add "move counter", as well as star-system, so the player can view in the end - how well he solved a particular level.
There were so many ideas about traps, doors etc., but it was still fun to add at least some within 48 hours! :)