Music is nice, but the game is too hard to control.
I'd recommend you to try Enigma, which is quite something, unfortunately it's not on MacUpdate yet, although it existed for a long time: http://www.nongnu.org/enigma/
Enigma is in the Oxyd/PerOxyd/Spacula/Bolo/Esprit style (All those games were written by Meinolf Schneider back in the 80's, but Enigma is written by a bunch of people and is free!)