Its really fun! So simple but with the music it feels very satisfying.
As feedback i would make it a mouse only game its weird to have to use the keyboard just to rotate, feels out of place and the pulse starts way to slow.
I do really love the pulse build up and the fade out its really satisfying and makes the game much better somehow really nice and juicy very nice! And the puzzles are really good to understand without any instructions so good puzzle flow :)