Are you sure puzzle 1 is working? I typed the obvious replacement for Australia, but no matter how I capitalize it, even making sure it's identical to the solution document, a sound never plays, and the words never turn black. I tried entering the solutions for the other sides of the crossword from the doc, but again nothing plays.
Puzzle 2 is great and I solved part of puzzle 3, but not the rest bc I think I need information from the first puzzle for that. And I was able to find all the secrets on the menu I think, so that was fun.