If You complete the indicated task You'll get the allotted gamerscore.
Guybrush Kicks Butt (45) - Completed Last Part: Guybrush Kicks Butt. Guybrush stopped LeChuck from marrying Elaine Marley
The Journey (25) - Complete Part Two: The Journey. Guybrush used a voodoo spell to travel to Monkey Island
The Three Trials (25) - Completed Part One: The Three Trials. Guybrush proved himself worthy to be a pirate
Under Monkey Island (25) - Completed Part Three: Under Monkey Island. Guybrush traveled into the Monkey Head and got the root
Sharp Tongue (15) - Guybrush learned all of the insults, and is the wittiest/deadliest pirate what ever swung a sword
RecordKeeper (10) - Collected all of the notes and memos sent between Herman Toothrot, LeChuck and the Cannibals
Ten Minutes Later... (10) - Guybrush can hold his breath for 10 minutes, but not any longer than that
Determined (10) - Completed the game without using any hints
Escape Artist (10) - Escaped from the monkey island cannibals hut 5 times
Human Cannonball (10) - Finished the entire game in record time. We hope you were wearing a helmet!
Marooned Everyone (10) - Re-marooned Herman Toothrot and marooned Carla, Otis and Meathook on Monkey Island
Old School (5) - Experienced the original, classic adventure game, as it was in the early 90s.