They are a little buggy but all unlocked during my playthrough. These are the ones I noticed didn't trigger when they should. Eagle Eye (finish all hidden-object puzzles without any hints) triggered in the beginning of the game when I found the Magic Palette. Junior Detective (finish a hidden-object puzzle within a minute) triggered with Sherlock Holmes (finish 5 hidden-object puzzles in a row within a minute each). Lord of Magic (used Magical Palette for the first time) triggered when I found the Mysti...