Here is the full list of all 12 Snark Busters: High Society trophies - there are 7 bronze, 4 silver and 1 gold.
For completing the game without being punished for random clicks
For reading all notes, diaries and newspapers
For completing the game without using hints
For completing the entire game on advanced difficulty
For watching all cutscenes without skipping any
For completing all mini-games without skipping any
For visiting the mirror-world 100 times
For saving the former pirate, now a sensible miller
For subduing the stubborn plant
For helping Romeo and Juliette
For completing any mini-game in 30 seconds or less
For finding all the items in the daisy in sequence without missing any