Here is the full list of all 12 Monkey Island 2: LeChuck's Revenge trophies - there are 7 bronze, 4 silver and 1 gold.
Complete the game in under three hours
Make Guybrush inhale some helium
Call the LucasArts helpdesk when walking through the jungle on Dinky Island
Allow Guybrush to die.
Complete the game using object highlighting five times or less.
Beat the game using fewer than 10 hints
Beat the game without using a hint
Complete part four: Dinky Island
Complete part three: LeChuck's Fortress
Complete part two: Four Map Pieces
Complete part one: The Largo Embargo
Switch to classic mode at least once