i haven't played this game although I'm not sure if that's very much of a different ontological position then the rest of the people in this comments section.
Ah, sounds good! thought that was part of their design :D
Got stuck on Level 23.... seems like a bug? Pretty sure I filled on the squares: http://imgur.com/NrJwiOP
yeah, I loved it, but the rotation made me kinda dizzy :) It was really cool once I figured out that after pressing a key, it would stop moving for a little bit.