Nice game indeed! Could you make the "good job" message pop up in the "new wheels" area? This area is clean by then, and I can then better see the contraption I just built.
The interface is nice, you can move cards that have some relation together (i.e. you can place them anywhere you want). It could use a bit more polish, and randomly generated puzzles would be nice (but of course require more effort to do and get right). Maybe a set of 30 non-random levels? And something a bit more graphical?
I am a tad annoyed at how the music gets softer as I miss a note -- when I need to get back into the rhythm I can't hear the music! Gee thanks, whoever fiddles with the volume! ;)
Really well done and fun puzzles! Write more and longer adventures, please!
Also, could you make it so that if I click when there is dialogue up, the dialogue goes away and the cursor comes back?
It's a puzzler, why put time pressure on it? Makes no sense, unless all you want to provide is "hard" mode. But why would I play if I don't get a chance to learn?
Nice concept, reminds me of a game where you need to go to Mars, here on kongregate. Most conspicuously absent is auditory feedback, aka sound effects when something happens on screen.