Shrek 2 - Mac

I bought this game for my 6 year old son after he played it all summer at summer camp. He loves it and was thrilled the day it came in the mail. After I got it loaded on the computer he was able to start the game on his own without any assistance. I haven't played along with him too much, so I can't really comment about the game. The only thing I haven't figured out is how to save a game that is in progress; apparently it's possible because there's a choice to open a saved game, but the option to save a game is a little less obvious.