I can't tell you how happy this makes me. This game was LEGENDARYYYYY back in the day. I remember the day I got it in 1986, I was 14. Incredibly hard, incredibly addictive. And it showed off the Mac's digitized sound and high-res screen long before PC's had the former.
Trivia- This was actually the very first game in history to use WASD, I believe. (Even though this copy doesn't default to it, the original one did.)
I don't hear audio. Is there audio? The audio was one of the best parts of this game!