I had some problems with the scale, as you anticipated, with mac, but other than that, I was able to play perfectly. This was a lot of fun to play, I really like the game and how it was implemented. Also, I put a duck in my game too, so I have to be supportive. :)
Just a curiosity: is there any feature that you had to break due to time constraints or other limitations? I would love to have your input in the "The Features Cemetery" topic. :)